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Confidence interval estimate for the population mean mpg

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Reference no: EM132340601

The table below contains the overall miles per gallon? (MPG) of a type of vehicle. Complete parts a and b below.

30, 30, 30, 35, 20, 27, 26, 24, 23, 33, 36, 22, 31, 32

Construct a 95?% confidence interval estimate for the population mean MPG for this type of? vehicle, assuming a normal distribution.

a) The 95?% confidence interval estimate is from __ MPG to __MPG

b) Choose the correct answer below.

A. 95?% of the sample data fall between the limits of the confidence interval.

B. We have 95?% confidence that the population mean MPG of this type of vehicle is contained in the interval.

C. The mean MPG of this type of vehicle for 95% of all samples of the same size is contained in the interval.

D. We have 95?% confidence that the mean MPG of this type of vehicle for the sample is contained in the interval

Reference no: EM132340601

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