I need help please.

(c) Suppose that the sample size is n = 400 rather than n = 100. What are the values for the mean and standard deviation when n = 400? (Round your standard deviation to four decimal places.) mean standard deviation Does the change in sample size affect the mean and standard deviation of the sampling distribution of p? If not, explain why not. (Select all that apply.) O When the sample size increases, the mean increases. O When the sample size increases, the mean decreases. When the sample size increases, the mean stays the same. The sampling distribution is always centered at the population mean, regardless of sample size. O When the sample size increases, the standard deviation increases. O When the sample size increases, the standard deviation decreases. O When the sample size increases, the standard deviation stays the same. The standard deviation of the sampling distribution is always the same as the standard deviation of the population distribution, regardless of sample size. (d) Is the sampling distribution of p approximately normal for random samples of size n = 400? Explain. (Select all that apply.) O the sampling distribution of p is approximately normal O the sampling distribution of p is not approximately normal O np is less than 10 O np equals 10 Onp is greater than 10 On(1 - p) is less than 10 On(1 - p) equals 10 On(1 - p) is greater than 10