The magazine sports illustrated asked a random sample of 750 division i college athletes, "do you believe performance-enhancing drugs are a problem in college sports? " suppose that 30% of all division i athletes think that these drugs are a problem. let p^ be the sample proportion who say that these drugs are a problem.
which of the following are the mean and standard deviation of the sampling distribution of the sample proportion p^?

a) mean = 0.30, sd = 0.017
b) mean = 0.30, sd = 0.55
c) mean = 0.30, sd = 0.0003
d) mean = 225, sd = 12.5
e) mean = 225, sd = 157.5

a) Mean = 0.30, SD = 0.017

Step-by-step explanation:

The mean and sampling distribution of the sample proportion can be found using the equations

Mean= p

where

Using these information:

Mean = 0.30

≈ 0.017

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

answer is : muchas/tipicas

have a nice day!

~recklesschicken