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Assume that a sample is used to estimate a population mean p. 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.
95% confidence; n = 12; x = 76.4; s = 5.9
3.75
3.38
4.50
2.81