In a random sample of seven ​people, the mean driving distance to work was 25.4 miles and the standard deviation was 5.6 miles. Assuming the population is normally distributed and using the​ t-distribution, a 95​% confidence interval for the population mean μ is (20.2, 30.6) ​(and the margin of error is 5.2​). Through​ research, it has been found that the population standard deviation of driving distances to work is 4.8. Using the standard normal distribution with the appropriate calculations for a standard deviation that is​ known, find the margin of error and construct a 95​% confidence interval for the population mean μ. Interpret and compare the results.         Question content area bottom Part 1 Identify the margin of error.   enter your response here   ▼   miles per hour square miles miles ​(Round to one decimal place

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