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A Sample Is Used to Obtain a 95% Confidence Interval

Question 23

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A sample is used to obtain a 95% confidence interval for the mean of a population.The confidence interval goes from 10.89 to 13.21.If the same sample had been used to test H0: μ = 12 vs.H1: μ ≠ 12,H0 could not be rejected at the 0.05 level.

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