Suppose μ = 80 and σ= 20 for a population.In a sample where n = 100 is randomly taken,95% of all possible sample means will fall above 76.71.

Question

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This statement is true because the confidence interval for the sample mean with a sample size of 100 and a population standard deviation of 20, at 95% confidence level, is (76.71, ∞). This means that 95% of all possible sample means will fall above 76.71.

Suppose μ = 80 and σ = 20 for a Population.In

Suppose μ = 80 and σ= 20 for a Population.In