STATISTICS
16. Assume that a sample is used to estimate a population mean, . Use the given confidence level and sample data to find the margin of error. Assume that the sample is a simple random sample and the population has a normal distribution. Round your answer to one more decimal place than the sample standard deviation.
99% confidence, n = 21, mean = 108.5, s = 15.3
A. 3.34
B. 99.00
C. 9.50
D. 2.85