7. Suppose we know that the proportion of objects in a population that have a particular characteristic of interest is 0.10. Are there any concerns if we want to calculate probabilities for the sampling distribution of p using normal approximation?
A. Since n = 40 is large, our only concern with using normal approximation will be the small amount of variability in the sampling distribution of p.
B. Since n = 40 is small here, the sampling distribution of p should not be assumed approximately normal.
C. Since p is not 0.5, the sampling distribution of p should not be assumed approximately normal.
D. If np < 10, then normal approximation is not appropriate.