Question: Given that X = 78, 2 = 25, n = 10, and = 0.05, test H0: > 80, assuming observations are randomly sampled

Given that ¯X = 78, σ2 = 25, n = 10, and α = 0.05, test H0: μ > 80, assuming observations are randomly sampled from a normal distribution.

Also, draw the standard normal distribution indicating where Z and the critical value are located.

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