If a sample of n = 25 scores is selected from a normal population with µ = 100 and σ = 20,then the sample mean is expected to be around M = 100.Find the exact range of values that will contain the sample mean 80% of the time.

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The Answer of If a sample of n = 25 scores is selected from a normal population with µ = 100 and σ = 20,then the sample mean is expected to be around M = 100.Find the exact range of values that will contain the sample mean 80% of the time.

If a Sample of N = 25 Scores Is Selected