Answer:
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
[tex]SD=\sqrt{\frac{p*(1-p)}{n} }[/tex]
where
- n is the sample size (750)
- p is the sample proportion of all Division I athletes think that these drugs are a problem (0.30 or 30%)
Using these information:
Mean = 0.30
[tex]SD=\sqrt{\frac{0.30*0.70}{750} }[/tex] ≈ 0.017
