Question is in the pic​

Step 1: The 95% confidence interval for the population mean difference is [lower bound, upper bound].

Step 2: To construct a 95% confidence interval for the population mean difference between the weight of infants treated on breast-fed and bottle-fed, we need the sample data and the standard deviation of the differences. Given that information, we can calculate the margin of error and determine the confidence interval.

The confidence interval provides a range of values within which we can be 95% confident that the true population mean difference lies. The lower bound and upper bound of the interval represent the range of plausible values for the population mean difference.

Step 3: The interpretation of the 95% confidence interval is as follows: We are 95% confident that the true population mean difference between the weight of infants treated on breast-fed and bottle-fed falls within the calculated interval. The lower bound value represents the minimum plausible difference in weights between the two groups, while the upper bound value represents the maximum plausible difference.

For example, if the confidence interval is [0.5, 1.2], it means that we are 95% confident that the true population mean difference in weight between breast-fed and bottle-fed infants lies somewhere between 0.5 and 1.2 units. This suggests that, on average, the weight of breast-fed infants could be between 0.5 and 1.2 units higher than that of bottle-fed infants.

It's important to note that the interpretation of the confidence interval does not imply causation or determine which feeding method is superior. It simply provides a range of plausible values for the population mean difference based on the observed sample data.

Learn more about Confidence interval

brainly.com/question/32546207

#SPJ11

Step-by-step explanation:

Since we have given that

Total no. if students= 34

no. of girls = 19

so, percentage of the class are girls is given by

\( \frac{number \: of \: girls}{total \: number \: of \: students} = \frac{19}{34} \times 100 \\ = 55.88 \: percentage\)

Step-by-step explanation:

change the directions i think

you have to make the -1 -> 0

you have to multiply by -1

and if you multiply the direction will change

Answer: r=−7

Step-by-step explanation:

Let's solve your equation step-by-step.

−11+r=−18

Step 1: Simplify both sides of the equation.

r−11=−18

Step 2: Add 11 to both sides.

r−11+11=−18+11

r=−7

hope i helped

-lvr

Answer:

the answer is -7 to to do this u need to do the opposite of addition which is subtraction. so -18 minus -11 which is -7. to check it u add -11 plus -7

Step-by-step explanation:

hope this helps

Answer:

No

Step-by-step explanation:

Look at the shape a polygon is 5 sides while a trapezoid has only 4 sides

Answer:

No. :) Reason: Trapezoids have to have at least on pair of parallel lines; this polygon has none.

Answer:

1 hr and 45 mins

Step-by-step explanation:

12:26-11:11 or  115, so an hour and 45 mins.

Hope this helps :D

Answer:

75 min

Step-by-step explanation:

I did 49+26 because from 11:11 to 12 theres 49 min and from 12 to 12:26 theres 26 min

Answer:

9

Step-by-step explanation:

Answer:

3p = 27

Step-by-step explanation:

3p/3 = 27/3

Divide and Simplify!

Answer:

$40 in euros!

Step-by-step explanation:

If 400 people attend the convention,

the food will last for 3 days.

Two quantities a and b are said to be in inverse proportion if an increase in quantity a, there will be a decrease in quantity b, and vice-versa. In other words, the product of their corresponding values should remain constant.  Sometimes, it is also known as inverse variation.

That is, if ab = k, then a and b are said to vary inversely. In this case, if b1, b2 are the values of b corresponding to the values a1, a2 of a, respectively then a1 b1 = a2 b2 or a1/a2 = b2 /b1

Given,

Food for 300 people will Last for 4 days.

Attending people = 400

Let the food for 400 will last for x days.

According to the question,

300 × 4 = 400 × x

x = 300 × 4 /400

x = 3

Hence, the food will last 3 days,

if 400 people attend the convention.

Learn more about inverse proportion here:

https://brainly.com/question/29597811

#SPJ1

The probability that a randomly selected student is a female who is enrolled in a mathematics course is 0.64.


The number of males who are currently enrolled in a mathematics course is: 120 x 60/100 = 72 students.

The number of females who are currently enrolled in a mathematics course is: 280 x 80/100 = 224 students.

Therefore, the total number of students currently enrolled in a mathematics course is: 72 + 224 = 296 students.

Thus, the probability that a randomly selected student is a female who is enrolled in a mathematics course is: Probability= Number of female students enrolled in mathematics/Total number of students= 224/400= 0.64.

To know more about probability refer to-

brainly.com/question/30034780#

#SPJ11

The impact of critic reviews and star ratings on one's strategies would depend on the individual and their approach to the game.

Some players may be heavily influenced by reviews and ratings, using them to adjust their strategies in order to please the critics and achieve higher scores.

Others may choose to ignore them altogether and focus on their own personal goals or strategies. Still, others may use the feedback as a tool for improvement, taking the criticism constructively and using it to make changes in their approach to the game.

Ultimately, it is up to the individual player to decide how much weight they place on reviews and ratings and how they choose to use them in their gameplay.

Learn more about game reviews here: https://brainly.com/question/26792600

#SPJ1

The given two-way Frequency table, there are 33 left-handed students who are not in the music program.

The number of left-handed students who are not in the music program, we need to examine the data presented in the two-way frequency table.

From the table, we can see that the number of left-handed students in the music program is 15, and the total number of left-handed students is 48.

the number of left-handed students not in the music program, we subtract the number of left-handed students in the music program from the total number of left-handed students.

Number of left-handed students not in the music program = Total number of left-handed students - Number of left-handed students in the music program

Number of left-handed students not in the music program = 48 - 15

Calculating this, we find that the number of left-handed students not in the music program is 33.

Therefore, there are 33 left-handed students who are not in the music program, based on the data provided in the two-way frequency table.

In conclusion, based on the given two-way frequency table, there are 33 left-handed students who are not in the music program.

To know more about Frequency .

https://brainly.com/question/28821602

#SPJ8

Answer: it’s a vertical line going through the point (6,0)

Step-by-step explanation: this is because when you only have an x value the line is going to be vertical line through the x value on that axis

The total number of new players are women in the soccer team is equal to 8.

Number of players in College's intramural soccer team = 30

The initial number of women on the soccer team is 60% of 30

= 0.6 x 30

= 18.

The initial number of men on the soccer team is the remaining 40% of 30,

= 0.4 x 30

= 12.

After 22 new players joined the team,

Total number of players became 30 + 22 = 52.

Let us assume that x new women players joined the team.

Then the total number of women players became 18 + x,

The percentage of women players on the team became 50%,

⇒(18 + x) / 52 = 0.5

Solving for x we have,

⇒ 18 + x = 0.5 x 52

⇒ 18 + x = 26

⇒ x = 26 - 18

⇒ x = 8

Therefore, 8 of the new players are women in the team.

Learn more about players here

brainly.com/question/28751431

#SPJ4

Therefore the equation for the the graphed line's parallel, which also passes through (4, 1), is y = -2*x + 9

Algebraically speaking, an equation is a statement that shows the equality of two mathematical expressions. For instance, the formulas 3x + 5 and 14 make up the equation 3x + 5 = 14, with the word "equal" between them.

Here,

If two lines have the same slope, they are considered to be parallel.

This will allow us to determine the equation for the line that is perpendicular to the graphed line and goes through the points (4, 1): y = -2*x + 9.

Let's try to locate the line as follows:

Finding the graphed line's slope is the first step towards locating the line.

Keep in mind that a generic statement is anything like:

y = a*x + b

where a represents the slope and b the y-intercept

If the line does indeed travel through the points (x1, y1) and (x2, y2), then the slope of that line can be expressed as follows:

\(m=\frac{y_{2}- y_{1}}{x_{2} -x_{1} }\)

As seen below, the graphed line crosses (-3, 3) and (-2, 1). The slope will therefore be:

\(m=\frac{1- 3}{2 -(-3) }\)

Since the parallel line's slope is likewise 2, it will look somewhat like this:

y = -2*x + c

Using the knowledge that this line passes through, we may determine the value of c. (4, 1).

Thus, y = 1 must exist when x = 4.

When we swap these out in the line equation, we get:

-2*4 + c = 1

-8 + c = 1

1 + 8 = c = 9

Therefore the equation for the the graphed line's parallel, which also passes through (4, 1), is y = -2*x + 9

To know more about equation , visit

https://brainly.com/question/12788590

#SPJ4

The equation which can be used to find the amount of time Hiroshi spends on his math homework is 1/4(x + 30 + 60) = x

According to the question,

Let total time Hiroshi spent on his homework be "y"

Total time spent on history homework = 30 minutes

Total time spent on English homework = 60 minutes

It is given that the time spent on math homework is x

and Also that One fourth of his total homework time is spent on math

=> x = 1/4y

=> 4x = y ----------(1)

Also , Sum of time taken in different homework will be equal total time y

=> 30 + 60 + x = y --------(2)

Substituting the values of x from equation (1) in equation (2)

=> 30 + 60 + x = 4x

divide by 4

=> 1/4(x + 30 + 60) = x is equation

=> x + 30 + 60 = 4x

=> 3x = 90

=> x = 90/3

=> x = 30 minutes

Total time taken in doing homework is 120 minutes

To know more about Equation here

https://brainly.com/question/14686792

#SPJ4

1. Given : 1 mile = 8/5 km

⇒   7.5 miles = 7.5 × value of 1 mile

⇒   7.5 miles = 7.5 × 8/5 km

⇒   7.5 miles = 12 km

2. Given : 1m = 1.1 yard

⇒   600m = 600 × value of 1m

⇒   600m = 600 × 1.1 yard

⇒   600m = 660 yards

3. Given : 1 yard =  3 feet

⇒   1 feet = 1/3 yard

⇒   730 feet = 730 × value of 1 feet

⇒   730 feet = 730 × 1/3 yard

⇒   730 feet = 243.33 yards

D.

\(22 - 8 \sqrt{5} \)

The number of cups of flour that are needed will be 12.5 cups.

Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both. Addition, subtraction, multiplication, and division are all possible mathematical operations.

The number of cups of flour that are needed will be:

= 5 × 20 / 8

= 12.5 cups.

Learn more about expressions on

brainly.com/question/723406

#SPJ1

Answer:

It would be the square root of 36.

Step-by-step explanation:

Answer:

14 pints were drank

Step-by-step explanation:

22 pints - 8 pints =

Answer:

14 pints

Step-by-step explanation:

22 - 8 is 14 pints, now just convert the pints to cups, that would be 28 cups since 1 pint is 2 cups so 14 x 2 is 28, hope this helps

Answer:

13.0 trillion pounds of carbon dioxide

Step-by-step explanation:

5.877 ÷ 0.4536 = 12.9563492063

rounded to 1 decimal place =

13.0 trillion pounds of carbon dioxide

The carbon dioxide released by United States is 12.9563 trillion pounds

In math, conversion is the process of changing the value of one form to another for example inches to millimeters, or liters to gallons.

Now it is given that,

Amount of carbon dioxide released by United States = 5.877 billion metric tons

It is also given that,

1 trillion pounds = 0.4536 billion metric tons

So, 1 billion metric tons = (1/0.4536) trillion pounds

Thus, 5.877 billion metric tons =  (5.877/0.4536) trillion pounds

⇒ 5.877 billion metric tons =  12.9563 trillion pounds

Thus, the carbon dioxide released by United States is 12.9563 trillion pounds

To learn more abut conversion:

https://brainly.com/question/12681461

#SPJ2

Answer: $2105.26

Step-by-step explanation:

Concept:

The formula to find simple interest is I=Prt

Given:

t=5 year

r=4.75%

I=$500

Solve:

I=Prt

500=P(4.75%)(5)

100=P(4.75%)

These standardization methods are crucial in chromatography to ensure accurate quantification and comparability of results.

In chromatography, standardization methods are used to ensure accurate and reliable results by establishing reference points or calibration standards. Here are three common methods of standardization in chromatography: External Standardization: In this method, a set of known standard samples with known concentrations or properties is prepared separately from the sample being analyzed. These standards are then analyzed using the same chromatographic conditions as the sample. By comparing the response of the sample to that of the standards, the concentration or properties of the sample can be determined. Internal Standardization: This method involves the addition of a known compound (internal standard) to both the standard solutions and the sample. The internal standard should ideally have similar properties to the analyte of interest but be different enough to be easily distinguished. The response of the internal standard is used as a reference to correct for variations in sample preparation, injection volume, and instrumental response. Internal standardization helps improve the accuracy and precision of the analysis. Standard Addition: This method is useful when the matrix of the sample interferes with the analysis or when the analyte concentration is unknown. It involves adding known amounts of the analyte of interest to different aliquots of the sample. The response of the analyte is then measured, and the concentration is determined by comparing the response with that of the standards. The difference in response between the sample and the standards allows for the determination of the analyte concentration in the original sample.

Learn more about chromatography here:

https://brainly.com/question/31309579

#SPJ11

Answer:

The number is less than 4.

Explanation:

If we write the inequality out, we get this:

x<14(3x+4)

Now we just need to solve for x. Multiplying both sides by 4 yields:

4x<3x+4

Subtract 3x from both sides:

x<4

So any number less than 4 will work!

The magnitude of the electric field at the point (-2, 2, 0) is 46.52 V/m

Since in a certain region of space, the potential is given by v = 2x − 5x²y 3yz²,

The electric field, E = -grad(V) where grad(V) = (dV/dx)i + (dV/dy)j + (dV/dz)k

Since V = 2x − 5x²y + 3yz²

dV/dx = d(2x − 5x²y + 3yz²)/dx

= d2x/dx - d5x²y/dx + d3yz²/dx

= 2 - 10xy + 0

= 2 - 10xy

dV/dy = d(2x − 5x²y + 3yz²)/dy

= d2x/dy - d5x²y/dy + d3yz²/dy

= 0 - 5x² + 3z²

=  - 5x² + 3z²

dV/dz = d(2x − 5x²y + 3yz²)/dz

= d2x/dz - d5x²y/dz + d3yz²/dz

= 0 - 0 + 6z

=  6z

So, E = -grad(V)

= -[(dV/dx)i + (dV/dy)j + (dV/dz)k]

= -[(2 - 10xy)i + (- 5x² + 3z²)j + (6z)k]

So, the electric field at (-2, 2, 0) is

E = -[(2 - 10xy)i + (- 5x² + 3z²)j + (6z)k]

E = -[(2 - 10(-2)(2))i + (- 5(2)² + 3(0)²)j + (6(0))k]

E = -[(2 + 40)i + (- 5(4) + 0)j + (0)k]

E = -[42i + (-20 + 0)j + (0)k]

E = -[42i - 20j + 0k]

E = -42i + 20j - 0k

So, the magnitude of E at (-2, 2, 0) is

|E| = √[(-42)² + 20² + 0²]

=  √[1764 + 400 + 0]

= √2164

= 46.52 V/m

So, the magnitude of the electric field at the point (-2, 2, 0) is 46.52 V/m

Learn more about electric field here:

https://brainly.com/question/25751825

#SPJ12

Answer:To evaluate the exponential expression 6(4+2)² - 32, we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, we simplify the expression inside the parentheses:

4 + 2 = 6

Next, we square the result:

6² = 36

Now, we substitute the squared result back into the expression:

6(36) - 32

Next, we perform the multiplication:

6 * 36 = 216

Finally, we subtract 32:

216 - 32 = 184

Therefore, the value of the given exponential expression 6(4+2)² - 32 is 184.

The sample should be milled to a radius that is approximately 7.19 times its original radius in order to increase its work function by 2%.

The work function of a material is related to its surface area, and milling a sample into smaller nano-spheres increases its surface area. The increase in work function can be approximated by the following equation:

ΔW = kTln(A/A₀)

where ΔW is the change in work function, k is Boltzmann's constant, T is the temperature in Kelvin, A is the new surface area of the milled sample, and A₀ is the original surface area of the sample.

To find the size to which the sample should be milled to increase its work function by 2%, we need to rearrange the equation to isolate the new surface area:

A/A₀ = e^(ΔW/kT)

Plugging in the known values, we get:

A/A₀ = e^(0.02 * 5.1 eV / (8.62 * 10⁻⁵ eV/K * 300 K))

= 51.64

The new surface area is 5064% larger than the original surface area.

Since the sample is being milled into nano-spheres, the new surface area is proportional to the square of the radius. Let's call the original radius of the sample "r₀". Then the new radius is:

r = √(A/A₀) * r₀ = √(51.64) * r₀ = 7.19 * r₀

--The question is incomplete, answering to the question below--

"g a gold (au) macro scale sample has a work function of 5.1 ev. to what size should the sample be milled to increase its work function by 2 %? assume that the sample is milled into nano-spheres and give the size in terms of radius. What is the relation between the new radium and original radius?"

To know more on work function

https://brainly.com/question/12658742

#SPJ4

Since each side of the pen is being increased by 4 feet, the total increase in perimeter would be 4 feet multiplied by 4 sides, which equals 16 feet.

To determine how many feet of additional fence Craig should purchase, we need to calculate the increase in the perimeter of the enlarged pen. Therefore, Craig should purchase an additional 16 feet of fence to build his enlarged fence.

The original size of the pen is an 8 by 8 feet square, which means each side measures 8 feet. The perimeter of the original pen is calculated by adding up the lengths of all four sides, so 8 + 8 + 8 + 8 = 32 feet.

To enlarge the pen, Craig decides to increase each side by 4 feet. After the enlargement, each side of the pen would measure 8 + 4 = 12 feet. The perimeter of the enlarged pen is calculated in the same way, by adding up the lengths of all four sides: 12 + 12 + 12 + 12 = 48 feet.

To find the additional fence Craig needs to purchase, we subtract the original perimeter from the enlarged perimeter: 48 feet - 32 feet = 16 feet. Therefore, Craig should purchase an additional 16 feet of fence to build his enlarged fence.

This calculation is based on the assumption that the pen remains a square shape after enlargement. If the shape of the enlarged pen differs from a square, the calculation would vary.

Learn more about perimeter here:

brainly.com/question/7486523

#SPJ11