Given below are the number of successes and sample size for a simple random sample from a population x =8, n= 40, 99% level a. Determine the sample proportion b. Decide whether using the one-proportion z-interval procedure is appropriate c. If appropriate, use the one-proportion z-interval procedure to find the confidence interval at the specified confidence level, d. If appropriate, find the margin of error for the estimate of p and express the confidence interval in towns of the sample proportion and the margin of error a. p (Type an integer or a decimal. Do not round )