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 .95 confidence interval for the mean assuming normality.

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