By using testing of hypothesis, it can be concluded that
The cola has a higher average compression strength than the strawberry drink, assuming that the distribution is normal
What is testing of hypothesis?
Suppose there is a data at hand and there is a hypothesis. Testing of hypothesis determines whether the particular hypothesis is supported by the data at hand.
The Null hypothesis is
\(H_{0}:\mu_{1}-\mu_{2}=0\)
The Alternative hypothesis
\(H_{a}:\mu_{1}-\mu_{2} < 0\)
\(n_{1}=n_{2}=15, \bar{x}_{1}=540,s_{1}=21, \bar{x}_{2}=554,s_{2}=15\)
Now,
\(df=\frac{\left ( \frac{s_{1}^{2}}{n_{1}}+\frac{s_{2}^{2}}{n_{2}} \right )^{2}}{\frac{\left ( s_{1}^{2}/n_{1} \right )^{2}}{n_{1}-1}+\frac{\left ( s_{2}^{2}/n_{2} \right )^{2}}{n_{2}-1}}\)
df = 25
For the test statistic
\(t=\frac{\bar{x}_{1}-\bar{x}_{2}}{\sqrt{\frac{s_{1}^{2}}{n_{1}}+\frac{s_{2}^{2}}{n_{2}}}}\)
t = -2.10
This is a left tailed test
p-value for t=-2.10 is 0.0229.
Since p-value is less than 0.05
The null hypothesis is rejected
The cola has a higher average compression strength than the strawberry drink.
It is assumed that the distribution is normal.
To learn more about testing of hypothesis, refer to the link-
https://brainly.com/question/15980493
#SPJ4
Text Features Central Idea Text Structure Write and explain how the text features and text structure contribute to the overall meaning of the text.
By using effective text features and text structure, the author can help the reader to better understand and remember the central idea of the text. These elements can also make the text more engaging and interesting to read. Overall, text features and text structure are essential tools for conveying information effectively and conveying the author's intended message to the reader.
What are text features and text structure?Generally, Text features and text structure are important components of a written text that contribute significantly to its overall meaning. The central idea of a text is the main message or thesis that the author wants to convey to the reader. The text structure is the way the author organizes the information within the text, and the text features are the visual and organizational elements of the text that help the reader navigate and understand the content.
Text features such as headings, subheadings, and bullet points help the reader to quickly identify the main ideas and subtopics of the text. Bold and italicized fonts may be used to emphasize important concepts or ideas. Images, charts, and graphs can provide visual aids that help the reader understand complex information. In addition, text features like footnotes, citations, and a bibliography can help to establish the credibility of the author and the information presented in the text.
Text structure also plays a critical role in conveying the central idea of a text. The author may use a variety of text structures, such as chronological order, cause and effect, problem-solution, or compare and contrast, to organize the information and present it in a logical and coherent manner. For example, a text about the causes and effects of climate change might use a cause and effect structure to explain how human activities are contributing to global warming and the impacts that result from this phenomenon.
Read more about text features and text structure
https://brainly.com/question/28211252
#SPJ1
1. The heights of American adult males are normally distributed with a mean of 177 cm and a standard deviation of 7.4 cm. Use the Empirical Rule to find the range of heights that contain approximately(a) 68% of the data cm -- cm(b) 95% of the data cm -- cm(c) 99.7% of the data cm -- cm
Solve.
7w-2 +8≤57
If all real numbers are solutions, click on "All reals".
If there is no solution, click on "No solution".
The solution of the equation 7w-2 + 8 ≤57 is w ≤ 7 2/7. This is real numbers at most 51 / 7
What are inequalities?When an a mathematical equation is represented as an inequality it means that the left hand side of the equation is not equal to the right hand side of the equation.
The relationship between both sides of the equation is expressed in terms of some special signs
Considering the question, the sign used is the less than or equal to sign written as ≤
How to solve the inequality7w - 2 + 8 ≤ 57
7w + 6 ≤ 57
collecting like terms
7w ≤ 57 - 6
7w ≤ 51
divide through by
w ≤ 51 / 7
w ≤ 7 2/7
The solution is all real numbers less than or equal to 7 2/7
Read more on inequality here: https://brainly.com/question/24372553
#SPJ1
evaluate
\( {( - 7)}^{ \frac{5}{3} } \times {( \frac{1}{56} )}^{ \frac{5}{3} } \)
please explain
\(\frac{-1}{32}\) is a required answer.
Answer:
Solution given:
\( {( - 7)}^{ \frac{5}{3} } \times {( \frac{1}{56} )}^{ \frac{5}{3} } \)
take power common
\((\frac{-7*1}{56})^{\frac{5}{3}}\)
Reduce the fraction
\((\frac{-1}{8})^{\frac{5}{3}}\)
make the1 and 8 in terms power 3
\((\frac{-1³}{2³})^{\frac{5}{3}}\)
take the common power
\((\frac{-1}{2})^{3*\frac{5}{3}}\)
Reduce power
\((\frac{-1}{2})^{5}\)
now
distribute power
\(\frac{-1^{5}}{2^{5}}\)
\(\frac{-1}{32}\)
HELP PLEASE!! you only have to do B
The values of a and b in the equations are 100 each
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =
The given equations are
a. 5x²/2 when x = 10
By substitution, a= 5(10)²/2
This implies that a=( 5 * 100)/2
a= 200/2 = 100
b = [2x²(x-5)]/10x
Substituting x=10 in the equation we have
b = 2*10²(10-5)]/[10(10)]
200(5)/100
b= 10000/100
Therefore b = 100
Learn more about equation on https://brainly.com/question/29657992
#SPJ1
what is the perimeter of a rectangle with length of 15.2 inches and a width of 5.05
Answer:
40.5 inches
Step-by-step explanation:
15.2*2+5.05*2=30.4+10.1=40.5
I need answer on this problem tyt
\(3.05 \times 10 ^{8} m/s\)
Seconds in a year:\(3.15 \times 10 ^{7} \)
\(\rule{300pt}{3pt}\)
Multiply the speed of light with seconds in a year
*Note:- We will not change the values because speed of light is in m/s and the time is also given in seconds.
\(\rule{300pt}{3pt}\)
\(3.08 \times 10 ^{8} \times 3.15 \times 10 ^{7} \)
\((3.05 \times 3.15) \times (10 ^{8} \times 10 ^{7} )\)
\(9.4675 \times 10 ^{15} \)
\( \tt9.46 \: Trillion \: Kilometers\)
arlene begins a test with a possible total of 80 points. she loses 2 points every questions she answers incorrectly.
Answer: how many questions were incorrect? take that number and multiply it by 2. then subtract whatever u got from 80.
Step-by-step explanation:
Explain why a randomized experiment allows researchers to draw a causal conclusion, whereas an observational study does not.
Randomized experiments allow researchers to draw causal conclusions because they have control over treatment assignment, reducing confounding variables. Observational studies lack this control and cannot establish causation with certainty.
Randomized experiments provide a higher level of control and reduce the influence of confounding variables that can affect the results. By randomly assigning participants to different groups, researchers ensure that any differences in the outcomes are more likely to be due to the treatment itself rather than other factors. This allows them to make causal inferences and attribute any observed effects to the specific treatment being studied.
Observational studies, on the other hand, are subject to confounding variables and potential biases. Researchers can observe relationships between variables but cannot establish causation with certainty. There may be underlying factors or variables that are responsible for the observed associations, making it difficult to draw causal conclusions.
In summary, randomized experiments provide a stronger basis for establishing causal relationships because they allow researchers to manipulate variables and control for confounding factors, whereas observational studies lack this level of control and are more prone to biases and confounding variables.
Learn more about Randomized experiments here:
https://brainly.com/question/20629933
#SPJ11
I need that r d d d d d. D d d d d d d. D
Answer:
D is not a function.
Step-by-step explanation:
The first option is a function because it makes up a straight line. The second option is also a function because it is also known as y = -3/2x + 2 creating a slope function. The third option is also a function because there is no more than one point for each x value. The last option is not a function because the number 2 is going for 2 variables A and B and you can't have them with more than one so D is your answer.
Answer:
D is not a function.
Step-by-step explanation:
The first option is a function because it makes up a straight line. The second option is also a function because it is also known as y = -3/2x + 2 creating a slope function. The third option is also a function because there is no more than one point for each x value. The last option is not a function because the number 2 is going for 2 variables A and B and you can't have them with more than one so D is your answer.
pls help me it geometry
Let's solve this problem step-by-step:
First let's convert 1 to 1/1:
⇒ Sequence: \(\frac{1}{1},\frac{1}{4}, \frac{1}{9}, \frac{1}{16}, \frac{1}{25} ,..\)
Now let's consider a few things:
the numerator of each of the fractions don't changethe denominators are all perfect squares:⇒ 1, 4, 9, 16 ,25, 36
The perfect square that comes after 25:
⇒ is 36
⇒ which is the denominator of the fraction that comes after \(\frac{1}{25}\)
Answer: \(\frac{1}{36}\)
Hope that helps!
Answer:
1/36
Step-by-step explanation:
If you write the first number as a fraction also, 1/1, then every term has a 1 on top of a fraction.
The denominators (number on the bottom) are
1, 4, 9, 16, 25, this is a list of perfect squares. That is
1 = 1×1 = 1^2
4 = 2×2 = 2^2
9 = 3×3 = 3^2
16 = 4×4 = 4^2
25 = 5×5 = 5^2
So the next number is
6×6 = 6^2
= 36
36 is on the bottom. 1 is on the top.
The next number is 1/36.
Please help me understand!!
Answer:
A.or.no1
is the answer
please brainliest and follow
Solve the diamond problem.
7 and and -12 is the answer correct me if im wrong
HOPE IT HEPLS:)
NEED HELP IMMEDIATELY PLEASE!!! Question 6 of 25
f(x) = 5x + 3. Find the inverse of f(x).
O A. f¹(x)=3-5x
OB. f-¹(x) = x-5/3
OC. f¹(x) = 5x - 3
OD. f-¹(x) = x-3/5
It is option D (f-¹(x) = x-3/5)
If the PPF is a downward-sloping straight line, then the law of increasing opportunity cost does not hold. Instead, the opportunity cost of producing an additional unit of good 1 or good 2 remains constant as more of either is produced (i.e., there are constant opportunity costs in production).
A straight line PPF indicates constant opportunity costs in production is TRUE.
The Production-Possibility Frontier (PPF) is a graphical representation of the maximum amount of two goods that can be produced given a certain number of resources.
If the PPF is a straight line, then the opportunity cost of producing an additional unit of one good is the same regardless of how much of that good is already being produced. This means that the resources used to produce the two goods are perfectly substitutable and there are no increasing opportunity costs.
However, if the PPF is a curved line, then the opportunity cost of producing an additional unit of one good increase as more of that good is produced. This is because the resources used to produce the two goods are not perfectly substitutable and there are increasing opportunity costs.
Learn more about PPF and Opportunity Cost here: brainly.com/question/28433459
#SPJ11
Recall that the cigarette industry requires that models in cigarette ads must appear to be at least 25 years old. Also recall that a sample of 50 people is randomly selected at a shopping mall. Each person in the sample is shown a "typical cigarette ad" and is asked to estimate the age of the model in the ad. The p -value for testing H0 versus Ha can be calculated to be 0.0038.
Determine whether H0 would be rejected at each of ? = .10, ? = .05, ? = .01, and ? = .001. (Round your answer to 4 decimal places.)
p-value Reject H0 at ? =
The p-value for testing H0 (null hypothesis) versus Ha (alternative hypothesis) is 0.0038. We need to determine whether H0 would be rejected at different significance levels: α = 0.10, α = 0.05, α = 0.01, and α = 0.001.
To make the decision, we compare the p-value with the chosen significance level. If the p-value is less than or equal to the significance level, we reject H0. Otherwise, we fail to reject H0.
At α = 0.10: Since the p-value (0.0038) is less than 0.10, we reject H0.
At α = 0.05: Since the p-value (0.0038) is less than 0.05, we reject H0.
At α = 0.01: Since the p-value (0.0038) is greater than 0.01, we fail to reject H0.
At α = 0.001: Since the p-value (0.0038) is greater than 0.001, we fail to reject H0.
In summary:
H0 would be rejected at α = 0.10 and α = 0.05.
H0 would not be rejected at α = 0.01 and α = 0.001.
Please note that the decision to reject or fail to reject the null hypothesis depends on the chosen significance level, and different levels of significance can lead to different conclusions.
Learn more about hypothesis testing here: brainly.com/question/17099835
#SPJ11
[A Revinit Later How to Artempt? Series Problem A giver series could be in Arittmetic Prog ession a Geometric Progression or a Fanonaco sevies Kou wil be provided with N numbers and your tank is fo first decide Which bpe of series it ia and then find out the next number in that series. Input Specification irput1: An meger viboe N dissoting the length of the array ingutet An ineeger ariay denotiong the valus of the series. Output Specification: Eample-1: inpertiss inpert2t i1.1.2.1.5!
The next number in the series will be 6.
Given the input specifications, the input and output for the given problem are as follows:
Input: An integer value N denoting the length of the array
Input: An integer array denoting the values of the series.
Output: The next number in that series. Here is the solution to the given problem:
Given, a series problem, which could be an Arithmetic Progression (AP), a Geometric Progression (GP), or a Fibonacci series. And, we are given N numbers and our task is to first decide which type of series it is and then find out the next number in that series.
There are three types of series as mentioned below:
1. Arithmetic Progression (AP): A sequence of numbers such that the difference between the consecutive terms is constant. e.g. 1, 3, 5, 7, 9, ...
2. Geometric Progression (GP): A sequence of numbers such that the ratio between the consecutive terms is constant. e.g. 2, 4, 8, 16, 32, ...
3. Fibonacci series: A series of numbers in which each number is the sum of the two preceding numbers. e.g. 0, 1, 1, 2, 3, 5, 8, 13, ...
Now, let's solve the given problem. First, we will check the given series type. If the difference between the consecutive terms is the same, it's an AP, if the ratio between the consecutive terms is constant, it's a GP and if it is neither AP nor GP, then it's a Fibonacci series.
In the given input example, the given series is: 1, 2, 1, 5
Let's calculate the differences between the consecutive terms.
(2 - 1) = 1
(1 - 2) = -1
(5 - 1) = 4
The differences between the consecutive terms are not the same, which means it's not an AP. Now, let's calculate the ratio between the consecutive terms.
2 / 1 = 2
1 / 2 = 0.5
5 / 1 = 5
The ratio between the consecutive terms is not constant, which means it's not a GP. Hence, it's a Fibonacci series.
Next, we need to find the next number in the series.
The next number in the Fibonacci series is the sum of the previous two numbers.
Here, the previous two numbers are 1 and 5.
Therefore, the next number in the series will be: 1 + 5 = 6.
Hence, the next number in the given series is 6.
To know more about series visit:
https://brainly.com/question/30457228
#SPJ11
to calculate mad and summing up the forecasts errors, the value used for ||18−20|| in the calculation is? multiple choice question. either 2 or -2 2 -2 cannot be computed
The sum of forecast errors is also known as total forecast error. Therefore, the correct answer is option A, which is "2."
The absolute error of the given data is calculated by subtracting the actual value from the forecasted value, followed by the absolute value.
The errors are then summed up to get the mean absolute deviation. The value used for ||18−20|| in the calculation of MAD and summing up the forecast errors is 2.
Therefore, the correct answer is option A, which is "2."Formula for calculating MAD:MAD = Σ ( | A_i - F_i | ) / n
Where: MAD is the mean absolute deviation|A_i - F_i| represents the absolute error between the actual value (A) and the forecasted value (F)n is the total number of observations, Sum of forecast errors:Σ ( A_i - F_i )Where: A_i is the actual valueF_i is the forecasted value
The sum of forecast errors is also known as total forecast error.
Learn more about absolute deviation here:
https://brainly.com/question/32547820
#SPJ11
You now have constructed a utility function that measures how much you value having total assets worth x dollars (x 20). This utility function is u(x) = V1. Compare the utility of reducing your total assets next year by the cost of the earthquake insurance with the expected utility next year of not taking the earthquake insurance. Should you take the insurance?
To determine whether you should take earthquake insurance, you need to compare the utility of reducing your total assets by the cost of the insurance with the expected utility of not taking the insurance. Let's denote the cost of the insurance as C and the probability of an earthquake causing financial loss as P.
If you take the insurance, your total assets will be (x - C), and the utility will be u(x - C) = V1(x - C).
If you don't take the insurance, the expected utility can be calculated as the weighted average of the utility in case of an earthquake (which causes a financial loss) and the utility in case there is no earthquake. Let's denote the financial loss caused by an earthquake as L. The expected utility of not taking the insurance is:
Expected utility = P * u(x - L) + (1 - P) * u(x) = V1(P * (x - L) + (1 - P) * x)
Now, compare the utilities:
- If u(x - C) > Expected utility, then you should take the insurance.
- If u(x - C) < Expected utility, then you should not take the insurance.
- If u(x - C) = Expected utility, then you are indifferent between taking and not taking the insurance.
Use the provided utility function and the specific values for x, C, L, and P to make your decision.
Find more about utility function
brainly.com/question/31266268
#SPJ11
the indexed variables (members) of an array must be integers. true or false
It is true that the indexed variables (members) of an array must be integers.
The indexed variables or members of an array must be integers. This is because arrays are data structures that store elements in a contiguous block of memory, and each element is accessed using an index. Indexing allows us to uniquely identify and retrieve specific elements within the array. In most programming languages, including C, C++, Java, and Python, array indices are integers and must be whole numbers (positive or negative) without any fractions or decimals. Attempting to use non-integer values as indices would result in a compilation error or unexpected behavior.
To know more about integers,
https://brainly.com/question/29255714
#SPJ11
Solve for x. PLEASE GIVE EXPLAINED WORK FOR IT
Answer:
x = 9
Step-by-step explanation:
7x - 25 = 4x + 2 (vertical angles)
7x - 4x = 2 + 25
3x = 27
x = 27/3
x = 9
4(9) + 2 = 38 degrees
the dominican republic has 10.7 million people and a national population growth rate of 1.5 percent. paraguay has 6.8 million people and a national population growth rate of 1.5 percent. in how many years will each country double in size?
The population of each country will become double in 47 years.
Given that,
The population of the Dominican republic is, n = 10.7 million.
The growth rate of the Dominican republic is, p = 1.5 %.
The population of Paraguay is, n' = 6.0 million.
The growth rate of Paraguay is p' = 1.5 %.
The doubling time of population growth depends on the rate of population growth.
Here,
n is the final population and n0 is the initial population and doubling the value in the future, n= 2*n0.
Solving this, we get:
t= ln (2*n0/n0)/(1.5/100) = 47 years.
Thus, we can conclude the population of each country will become double in 47 years.
To learn more about the population model visit: brainly.com/question/22852351
#SPJ4
the difference of a numder 9 is less than 2
Answer:
Step-by-step explanation:
I think you mean
n-9<2
n<11
Please Help
Which of the following is a continuous random variable?
A. X= number of incoming flights at the local airport
B. T=winning time in the man's 100 meter dash at the 2016 Olympics
C. P=number of points scored by Stephen curry in a game
D.H=The number of hats sold on Tuesday
Answer:
option A
Step-by-step explanation:
because it is not limited to anything while option b is limited to the men's hundred meter dash and 2016, and to the Olympics
C is limited to one game and stephen curry
D is limited to tuesday
since option a isn't confined to one day, person, or specific event there can be endless numbers assigned to the variable
A vehicle traveled 52 1/2 miles and used 2 1/2 gallons of gasoline. What was the rate of fuel use in miles per gallon?
The rate of fuel use in miles per gallon during the travelling 10.5 miles per gallon.
How to calculate fuel used in miles per gallon?To find the rate of fuel use in miles per gallon, we need to divide the total distance traveled by the amount of gasoline used:
Rate = Distance / Gasoline
In this case, the distance traveled is 52 1/2 miles and the amount of gasoline used is 2 1/2 gallons:
Rate = 52 1/2 miles / 2 1/2 gallons
To simplify this expression, we can convert both the distance and the amount of gasoline to improper fractions:
Rate = (105/2) miles / (5/2) gallons
Now we can divide the numerator by the denominator:
Rate = (105/2) miles x (2/5) / (5/2) gallons x (2/5)
Rate = 105/10 miles per gallon
Rate = 10.5 miles per gallon
Therefore, the rate of fuel use in miles per gallon is 10.5.
To know more about Rate check:
https://brainly.com/question/29334875
#SPJ3
Solve the following equation.
m/10 + 15 =21
The m = 60 is the value of the variable that makes the equation true.
Given equation is:
m/10 + 15 = 21
To solve the equation for m, first, we will isolate m on one side of the equation.
So, we will subtract 15 from both sides of the equation.
m/10 + 15 - 15
= 21 - 15m/10
= 6
Now, we will isolate m by multiplying both sides of the equation by 10.10 × m/10
= 6 × 10m
= 60
Thus, the solution for the given equation m/10 + 15 = 21 is m = 60.
Therefore, m = 60 is the value of the variable that makes the equation true.
To know more about variable visit:-
https://brainly.com/question/15078630
#SPJ11
A , B , C , D ??????????????????????
Answer:
3 2/3 cups
Step-by-step explanation:
1 1/3 for one recipe.
2/3 cups for the second recipe.
1 2/3 for the third recipe.
Add all of the amount of cups used to get the total amount of sugar used.
1 1/3 + 2/3 + 1 2/3 = 3 2/3
She used 3 2/3 cups of sugar in all.
hope this helps!! p.s. i really need brainliest :)
Helppppppppp meeeeeeeeeeeeeeee
Answer:
x = 16
Step-by-step explanation:
(5x + 14)° + (x + 19)° + (2x + 19)° = 180°
8x + 52 = 180
8x = 128
x = 16
Nicole runs 6 miles in 45 minutes. At the same rate, how many minutes would she take to run 4 miles?
Answer:
30 minutes
Step-by-step explanation:
6=45
4=x
6x2/3=4
45x2/3=30
x=30
Answer:
66 minutes
Step-by-step explanation:
NEED HELP ASAP!! WILL GIVE BRAINIEST TO THE FIRST PERSON WHO ANSWERS!
Write the sentence as an equation. P and 13 more is the same as 173
Answer: p+13=173
Step-by-step explanation:
P and 13 more just means p + 13
the same as just means =
so put those together and you get p+13=173