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Average shoe size of american men

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What is the confidence interval if you suppose that the average shoe size of American men is 9. The hypothesized value of the average shoe size in the population is 9, and observed shoe size in our sample of 1,000 men is 10, with a standard deviation of 2. 

A two-tailed test with df = ∞ and α = .05, we find t95= 1.96.

Reference no: EM132399898

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