Solved: Suppose the confidence interval obtained in part a is too, Basic Statistics

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Suppose the confidence interval obtained in part a is too

Question: A random sample of 36 mid-sized cars tested for fuel consumption gave a mean of 26.4 miles per gallon with a standard deviation of 2.3 miles per gallon.

a. Find a 99% confidence interval for the population mean, μ.

b. Suppose the confidence interval obtained in part a is too wide. How can the width of this interval be reduced? Describe all possible alternatives. Which alternative is the best and why?

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Basic Statistics: Suppose the confidence interval obtained in part a is too

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