Noise levels at 5 construction sites were measured in decibels yielding the following data: 149,181,169,139,155 Construct...

Noise levels at 5 construction sites were measured in decibels yielding the following data:

149,181,169,139,155

Construct the 90% confidence interval for the mean noise level at such locations. Assume the population is approximately normal.

Copy Data

Step 1 of 4 :

Calculate the sample mean for the given sample data. Round your answer to one decimal place

Expert Solution

orchestra answered 1 year ago

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