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Mathematics, 15.04.2020 23:55 sheilashair
Noise levels at 5 airports were measured in decibels yielding the following data: 152,154,139,124,120 Construct the 80% confidence interval for the mean noise level at such locations. Assume the population is approximately normal. Step 1 of 4 : Calculate the sample mean for the given sample data. Round your answer to one decimal place.
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Noise levels at 5 airports were measured in decibels yielding the following data: 152,154,139,124,12...
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