Question: For the following situations, (a) n = 12, = 22, X = 65, (b) n = 22, = 10, X = 185, (c)

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.

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