Suppose that a random sample of size 100 is to be selected from a population with mean 40 and standard deviation 8. What is the probability that a sample mean will be less than 40.8? Round your answer to three decimal places. .500 .460 .841 .159 .540
Added by Ricardo A.
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The standard error of the mean is calculated by dividing the standard deviation by the square root of the sample size. SEM = 8 / √100 = 8 / 10 = 0.8 Show more…
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