Question: 8.Construct a 95% confidence interval estimate for the population mean . Assume the population has a normal distribution. A sample of 20 part-time workers had

8.Construct a 95% confidence interval estimate for the population mean . Assume the population has a normal distribution. A sample of 20 part-time workers had mean annual earnings of $3120 with a standard deviation of $677. Round to the nearest dollar. You must show all the necessary computations. What is the margin of error? Whats the final conclusion in words and in the context of the problem

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