Essay
Marathon Runners
A researcher wants to study the average miles run per day for marathon runners.In testing the hypotheses: H0: μ = 25 miles vs.H1: μ ≠ 25 miles,a random sample of 36 marathon runners drawn from a normal population whose standard deviation is 10,produced a mean of 22.8 miles weekly.
-{Marathon Runners Narrative} Explain briefly how to use the confidence interval to test the hypothesis.
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