Given below are the number of successes and sample size for a simple random sample from a population. x = 9, n = 50, 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 terms of the sample proportion and the margin of error. d. Select the correct choice below and, if necessary, fill in the answer boxes within your choice. A. The margin of error is The 99% confidence interval is + (Type integers or decimals. Round to three decimal places as needed.) B. The one-proportion z-interval procedure is not appropriate.

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