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gladu [14]
3 years ago
6

A 95% confidence interval for the proportion of young adults who skip breakfast is .20 to .27. Which of the following is a corre

ct interpretation of this 95% confidence interval? A The proportion of young adults who skip breakfast 95% of the time is between .20 and .27. B We are 95% confident that the sample proportion of young adults who skip breakfast is between .20 and .27. C If this study were to be repeated with a sample of the same size, there is a 95% probability that the sample proportion would be between .20 and .27. D We are 95% confident that the true proportion of young adults in the population who skip breakfast is between .20 and .27.
Mathematics
1 answer:
mixer [17]3 years ago
5 0

Answer:

We are 95% confident that the true proportion of young adults in the population who skip breakfast is between .20 and .27.

Step-by-step explanation:

A 95% confidence interval for the proportion of young adults who skip breakfast is .20 to .27. Which of the following is a correct interpretation of this 95% confidence interval?

We take a sample, and infer for the entire population.

So the interpretation is that we are 95% sure that the true proportion of all young adults who skip breakfast is between 0.20 and 0.27.

So the correct answer is:

We are 95% confident that the true proportion of young adults in the population who skip breakfast is between .20 and .27.

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Jasmine can run 4 5/6 miles in 2/3 of an hour. how many miles can she run 1 hour simplify comepletly
Vikentia [17]

Remark

the question depends on d= r * t

d = the distance in miles.

r = the rate of travel in miles per hour

t = the time in hours.


Step One

Rearrange the formula so you are solving for the rate.


d = r * t Divide by t

4 5/6 = (4*6 + 5)/6 = 29/6


r = d / t


Step Two

Substitute into the equation.

r = \dfrac{\dfrac{29}{6}}{\dfrac{2}{3} }


Step Three

Turn the bottom fraction upside down. Multiply these two together.


r = \dfrac{29}{6} * \dfrac{3}{2}


r = 29/4 miles hour.


Step Four

Solve for d when t = 1 hour.


d = ??

r = 29/4 miles / hour

t = 1 hour.


d = 29/4 * 1

d = 29/4 miles


That's as simple as you can get it unless you want 7 1/4 miles or 7.25 miles


7 0
2 years ago
If one diagonal of a rhombus is 15 meters long and it’s area is 157.5 square meters, find the measures of the other diagonal
ycow [4]

Answer:

The other diagonal measures 21m

Step-by-step explanation:

In this question, we are tasked with calculating the length of the second diagonal of as Rhombus given the measure of the surface area of the rhombus and the length of the other diagonal

Mathematically, for a rhombus having two diagonals d_{1} and d_{2} , the area of the rhombus can be calculated mathematically using the formula below;

A = 1/2 ×d_{1} × d_{2}

From the question, we can identify that A = 157.5m^{2} and d_{1} = 15m

we input these in the formula;

157.5 = 1/2 × 15 × d_{2}

315 = 15 d_{2}

d_{2} = 315/15

d_{2} = 21m

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3 years ago
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grigory [225]

Answer:

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Step-by-step explanation:

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Dima020 [189]

Answer:

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32.8084 feet

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10000 millimeters

Step-by-step explanation:

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