Confidence interval for the true mean fuel efficiency


A consumer advocacy group wants to develop a 90% confidence interval for the true mean fuel efficiency. They take a random sample of 64 cars and compute the sample mean to be equal to 35.25. (Assume that the population standard deviation is still 1 mile per gallon.) They ask you to construct the 90% confidence interval. The advocacy group then asks you if there is a 90% chance that the true mean is between the two numbers you just computed. Please compute the 90% Confidence Interval and respond to group's question.

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Basic Statistics: Confidence interval for the true mean fuel efficiency
Reference No:- TGS0869631

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