1for the following situations a n 12 sigma 22 x 65 b n , Ask an Expert

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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 .95 confidence interval for the mean assuming normality.

2. What happens to the length of a confidence interval for the mean of a normal distribution when the sample size is doubled? What happens if it is quadrupled?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92210141

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