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Competitive Stats
Q34Section I (Objective (Q1–Q80))34 of 80

Statistical Inference — 95% CI for a mean with known SD

The mean height obtained from a random sample of size 100 is 64 inches. The standard deviation of the height distribution is known to be 3 inches. What is the 95% confidence interval for mean height of the population? (Assume Z0.025=2Z_{0.025} = 2)

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