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Each year researchers at the U S Bureau of Labor Statistics BLS administer the American...

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Each year researchers at the U S Bureau of Labor Statistics BLS administer the American Time Use Survey ATUS Researchers estimate the average amount of time Americans spend on daily activities such as working housework and leisure activities In particular one activity that is of interest is the average amount of time Americans spend watching television each day A researcher complied a random sample of 12 Americans and asked each person how much time they spent watching television each day The results are given below 4 3 9 2 2 5 3 9 4 7 2 3 9 1 4 3 3 6 3 1 Determine the point estimate and the sample standard deviation s Round the solutions to four decimal places if necessary Using a 98 confidence level determine the margin of error E and a confidence interval for the average time Americans spend watching television each day Report the confidence interval using interval notation Round solutions to two decimal places if necessary The margin of error is given by E 98 confidence interval is given by

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