Someone please help! I’ll give brainliest!!

There is sufficient evidence that the valve performs above the specifications.

Null Hypothesis (H0): The mean pressure of the valve is equal to 5.3 lbs/square inch

Alternative Hypothesis (H1): The mean pressure of the valve is greater than 5.3 lbs/square inch

To test whether the valve performs above the specifications, a hypothesis test can be used. The test statistic used will be a t-test since the sample size is below 30. The critical value at the 0.05 level is 1.645. The formula for the t-test is: t = (X-μ)/(s/√n) , where X is the sample mean, μ is the population mean, s is the sample standard deviation, and n is the sample size.

Plugging in the known values, the t-test is calculated as: t = (5.5-5.3)/(0.7/√100) = 2.571. Since this value is greater than the critical value at the 0.05 level (1.645), we can reject the null hypothesis and conclude that there is sufficient evidence that the valve performs above the specifications.

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All of the following are measures of central tendency except the range.

The range is a measure of dispersion, representing the difference between the largest and smallest values in a dataset. It provides information about the spread or variability of the data but does not provide information about the central tendency.

On the other hand, measures of central tendency are statistical measures that aim to summarize the center or typical value of a dataset. They include the mode, median, and mean.

The mode represents the most frequently occurring value(s) in the dataset.

The median is the middle value when the data is arranged in ascending or descending order. It divides the dataset into two equal halves.

The mean is the arithmetic average of all the values in the dataset. It is calculated by summing all the values and dividing by the total number of values.

Therefore, option C, range, is not a measure of central tendency as it focuses on the spread or dispersion of the data rather than summarizing the central or typical value.

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Yes it can be written like that.

Answer: yes it can

Step-by-step explanation: 2.0 is the same as 2/10

Answer:

3(4 + n) = n + 18

n = 3

Step-by-step explanation:

because the sum of 4 and a number is multiplied by three. That equals the number plus 18. N = 3. in the image below are the steps you can take to solve the equation.

The probability of getting two red counters is 27.77%, the probability of getting two blue counters is 20.38%, and the probability of getting one of each color is 51.38%.

Given that Tina has two bags of counters, Bag A and Bag B, and there are 5 red counters and 3 blue counters in bag A, while there are 4 red counters and 5 blue counters in bag B, to determine, if Tina takes at random a counter from each bag, the probability of obtaining each counter, the following calculation must be made:

Therefore, the probability of getting two red counters is 27.77%, the probability of getting two blue counters is 20.38%, and the probability of getting one of each color is 51.38%.

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Answer:

A

Step-by-step explanation:

Answer is a because the common difference is -9

Answer:

the data represent a linear function because there is a common difference of -9

Step-by-step explanation:

Answer:

Given the following information, your system of equation is going to be...

x + y = 250

15x + 20y = 4250

Step-by-step explanation:

So, in the problem, we are given important key details that can help us solve it.

Now that we have this information, we can solve the problem. Since 250 packages were sold in total, then you are going to add x and y. Since the school collected $4250 from the sales, then you are going to be adding 15x and 20y together.

So, to conclude, your answer is going to be the first answer choice.

Answer:

15X + 20Y = 4250

Step-by-step explanation:

Saquinavir’s poor solubility due to its log P value of 0.4 can limit its absorption. Strategies to overcome this include prodrug formation, lipid-based formulations, and nanotechnology-based delivery systems.


a. Saquinavir’s log P value of 0.4 suggests that it has poor solubility in water, which can limit its absorption and bioavailability when administered orally.

b. To overcome the solubility problem, various strategies can be employed, such as formulating saquinavir as a prodrug, using co-solvents or surfactants to enhance its solubility, incorporating it into lipid-based formulations, or utilizing nanotechnology-based delivery systems.

c. Saquinavir is indicated for the treatment of HIV infection. It is a protease inhibitor that acts by inhibiting the HIV-1 protease enzyme, thereby preventing viral replication.


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The "hypothesis of no change," "status quo," and "conventional wisdom" are all alternative names for the null hypothesis. Unless there is overwhelming evidence to the contrary, the null hypothesis is assumed to be correct.

H0: u = 1: u ≠ 1,400

When testing hypotheses with the P value, the null hypothesis is rejected if?

The evidence against the null hypothesis is stronger when the p-value is smaller (closer to 0).If the p-esteem is not exactly or equivalent to the predetermined importance level α, the invalid speculation is dismissed;The null hypothesis is not rejected otherwise.

A statement of expectation or prediction that will be tested by research is called a research hypothesis. Read up on the subject that interests you before coming up with your research hypothesis.

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Answer:

B

Step-by-step explanation:

The slope of this graph which is the unit rate = 18/4 = 4.5 This graph goes through 0,0 and (4,18) and the unit rate = y /x

Answer:

1  4(3-r)  or  12-4r

2.  7( 8-m) or 56-7m

3.   -2

Step-by-step explanation:

1) |4r−12| , if r<3

|4r-12|

Factor out a 4

4|r-3|

|r-3| will be less than 0 since r is less than 3

So we can rewrite it as 3-r to remove the absolute value signs and make it positive

4 (3-r)

12 -4r

2.   |7m–56| , if m<8

Factor out a 7

7| m-8|  

|m-8| will be less than 0 since m is less than 8

So we can rewrite it as  8-m to remove the absolute value signs and make it positive

7( 8-m)

56-8m

3) |z−7|−|z−9| , if z<7

|z-7| will be less than 0 since z is less than 7  and |z-9| will be less than 0 since z is less than 7

So we can rewrite it as  7-z  and 9-z to remove the absolute value signs and make it positive

7-z - (9-z)

Distribute the minus sign

7-z-9+z

-2

To calculate the Mean Absolute Deviation (MAD) of a data set, you need to find the average of the absolute differences between each value and the mean of the data set. However, the table you provided only shows the distances between each value and the mean of 12, without the actual values of the data set. Without the actual values, it is not possible to calculate the MAD.

The Mean Absolute Deviation is a measure of the dispersion or spread of a data set. It quantifies the average distance between each data point and the mean. By finding the absolute difference between each value and the mean, summing up these differences, and then dividing by the number of data points, we can obtain the MAD.
If you can provide the actual values of the data set, I would be able to calculate the MAD for you.

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Yes, the equation y = 5x represents a proportional relationship

Two or more expressions with an Equal sign is called as Equation.

The given equation is y=5x.

In a proportional relationship, the ratio of y to x is constant.

In the given equation the variable x and y has a proportional relationship.

The equation is in the form of y=mx+b

the ratio of y to x is 5, meaning that for every unit increase in x, y increases by 5 units.

Hence,  Yes, the equation y = 5x represents a proportional relationship

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Answer:

D

Step-by-step explanation:

First, we can find the volume of the rectangular prism.

As shown in the image, the dimensions are 4 by 4 by 9.

So,

4 * 4 * 9 = 144.

Now, we find the volume of the triangular prism.

As shown in the image, the dimensions are 3 by 4 by 9.

So,

3 * 4 * 9 = 108.

Now we add the volumes together:

144 + 108 = 252.

So, the answer is option D: 252 cubic meters.

Answer:

C

Step-by-step explanation:

Please give me brainliest

We need to use about 10 terms to estimate the value of the series with an error at most 0.000017.

To estimate the value of the convergent series 9 + 15 + ... with an error at most 0.000017, we need to use the formula for the error bound of a convergent series:

|En| ≤ (Mn+1/2) * r^n

where En is the error bound, Mn is the maximum value of the remainder term for the first n terms of the series, r is the common ratio, and n is the number of terms used to estimate the series.

In this case, the series has a common ratio of 5/3 (since each term is 5/3 times the previous term), and the remainder term for the first n terms is:

Rn = (5/3)^n * 9/(3n+3)

To find Mn, we need to find the maximum value of Rn for n terms. This can be done by taking the derivative of Rn with respect to n, setting it equal to zero, and solving for n. However, since we only need an estimate of the number of terms, we can use trial and error to find the smallest n such that Rn ≤ 0.000017:

n = 10: R10 ≈ 0.000013
n = 11: R11 ≈ 0.000021


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The total area of the glass used in making the rectangular prism-shaped aquarium is 60 square feet.

The rectangular crystal formed aquarium has a base area of 6 feet by 2.5 feet, which is equivalent to 15 square feet. The level of the aquarium is 4 feet. To compute the complete region of the glass utilized in making the aquarium, you really want to duplicate the base region by the level, which is 15 x 4 = 60 square feet. This implies that 60 square feet of glass were utilized in making the aquarium. The glass some portion of the aquarium incorporates the four sides and the top, while the base is normally made of an alternate material, like acrylic.

The foundation of the rectangular crystal formed aquarium is 6 feet by 2.5 feet, which gives an all out area of 15 square feet (6 x 2.5). The level of the aquarium is 4 feet. Hence, the absolute region of the glass utilized in creating the aquarium can be determined by duplicating the base region by the level: 15 x 4 = 60 square feet.

The glass a piece of the aquarium would be the four sides and the top. The base would ordinarily be made of another material, like acrylic.

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Answer:

82 is the median

Step-by-step explanation:

Answer: 0.648

Step-by-step explanation:

We can use the formula P(B|A) = P(A and B) / P(A) to find P(A and B), where P(A and B) is the probability of both A and B occurring and P(A) is the probability of A occurring.

Rearranging the formula, we get:

P(A and B) = P(B|A) * P(A)

Substituting the given values, we get:

P(A and B) = 0.8 * 0.81 = 0.648

Therefore, the value of P(A and B) is 0.648, rounded to the nearest thousandth.

Answer:400

Step-by-step explanation:

True. The Empirical Rule, also known as the 68-95-99.7 Rule, assumes that the distribution of data follows a normal curve, which is symmetrical and bell-shaped.

The Empirical Rule is a useful tool for understanding the spread of data in a normal distribution. A normal distribution is a symmetrical, bell-shaped distribution that is characterized by its mean, median, and mode. The mean is the average of all the data, the median is the middle value, and the mode is the most frequently occurring value.

According to the Empirical Rule, approximately 68% of the data falls within one standard deviation of the mean. This means that if you have a normal distribution, and you know the mean and standard deviation, you can estimate that 68% of the data will be within one standard deviation above and below the mean. For example, if the mean of a distribution is 100 and the standard deviation is 10, then 68% of the data will be between 90 and 110.

It's important to note that the Empirical Rule is only applicable to data that follows a normal distribution. In other words, if your data is not normally distributed, the Empirical Rule may not provide an accurate representation of the spread of your data.

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Answer: 1865.738

Step-by-step explanation:

1,873 - 7.262 = 1865.738

Answer: go up 1 and over 5 for each point

Step-by-step explanation: because 1/5 is your slope and it’s rise over run

Answer:

thirty-eight

Step-by-step explanation:

31+7= answer

Answer:

i think its either 38 or 24

Step-by-step explanation:

The missing vertex of the rectangle is equal to D(x, y) = (- 13, 18). (Correct choice: B)

In this problem we find the case of rectangle with three vertices at following points: A(x, y) = (- 25, 18), B(x, y) = (- 13, - 9) and C(x, y) = (- 25, 9). The four vertices of the rectangle can be found by following expression:

A(x, y) = (a, b), B(x, y) = (c, d), C(x, y) = (a, d), D(x, y) = (c, b)

If we know that a = - 25, b = 18, c = - 13 and d = - 9, then the location of the missing point is:

D(x, y) = (- 13, 18)

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Answer:

h = 7 units

Step-by-step explanation:

Jessica made an error with the \(\frac{1}{2}\) in that she multiplied A by it instead of dividing.

Given

A = \(\frac{1}{2}\) bh

with A = 17.5 and b = 5, then

17.5 = \(\frac{1}{2}\) × h × 5 ( multiply both sides by 2 to clear the fraction )

35 = 5h ( divide both sides by 5 )

h = 7

it is wrong .

Jessica's mistake:

A = 1/2bh

1/2A • b = h >she should multiply the area with 2 not 1/2 and divide the area by b rather than multiply by b

1/2 (17.5)(5) = h

43.75 = h

correct answer:

A = 1/2bh

2A/b=h

h=2(17.5)/5

h=7

Answer:

3x^2 - 2b

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