A Random Sample of N = 4 Scores Is Obtained

question 49

Multiple Choice

A random sample of n = 4 scores is obtained from a normal population with µ = 20 and σ = 4.What is the probability that the sample mean will be greater than M = 22?​

• A)​0.50
• B)​1.00
• C)​0.1587
• D)​0.3085

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