15 9. According to a recent poll, 27% of Americans get 30 minutes of exercise at least five days each week. Let's assume this is the parameter value for the population.

If you take a simple random sample of 25 Americans and let the proportion in the sample who get 30 minutes of exercise at least five days per week, is the shape of the sampling distribution of approximately Normal? a. No, because n < 30. b. No, because np < 10. C. Yes, because we can reasonably assume that there are more than (10)(25) = 250 individuals in the population. d. Yes, because we took a simple random sample. e. Yes, because n(1-p) ≥10. 10. According to a recent poll, 27% of Americans get 30 minutes of exercise at least five days each week. Let's assume this is the parameter value for the population. If a simple random sample of size n = 50