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What is the population mean of car

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Reference no: EM132857208

-Suppose you are trying to estimate the average miles per gallon for a new brand of car. You take a random sample of 40 cars, and, for this sample, the average miles per gallon is 32 and the standard deviation is 2.2. Answer the following questions in a Word document:

-What is the population mean you are trying to estimate?

-What value is the point estimate for the population mean? Describe, what the point estimate represents.

-Suppose you would like to construct a 90 percent confidence interval. What would be the margin of error for this interval?

-What would be the lower and upper limits for this 90 percent confidence interval?

-Now that you have constructed the interval, define its meaning.

Reference no: EM132857208

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