31 students are asked in a survey how many hours they work during a week. Their responses have a mean of 19 hours and a standard deviation of 5 hours. Find the margin of error for a 95% confidence interval. Round your answer to two decimal places. hours
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We know that we want to find the margin of error for a 95% confidence interval. This means that we want to find the range of values that we can be 95% confident contains the true population mean. Show more…
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