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1. For the following situations, (a) n = 12, σ = 22, X¯ = 65, (b) n = 22, σ = 10, X¯ = 185, (c) n = 50, σ = 30, X¯ = 19, compute a 0.95 confidence interval for the mean.
2. Describe the two components of a random sample.
Statistics and Probability, Statistics
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