In a random sample of seven people, the mean driving distance to work was 20.2 miles and the standard deviation was 4.6 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 90% confidence interval for the population mean μ. Interpret the results. Identify the margin of error. 3.4 miles (Round to one decimal place as needed.) Construct a 90% confidence interval for the population mean. (Round to one decimal place as needed.)

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