From a random sample of 48 days in a recent year, US Gasoline prices had a...

From a random sample of 48 days in a recent year, US Gasoline prices had a mean of $2.34 and a standard deviation of $0.30. Use this information to construct the following confidence intervals and determine the margin of error for each:

a. 90%

b. 95%

c. 99%

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Expert Solution

orchestra answered 1 year ago

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