Question

A random sample of size n = 50 is taken from a population with mean µ = - 9.5 and standard deviation σ =2.
a. Calculate the expected value and the standard error for the sampling distribution of the sample mean.
b. What is the probability that the sample mean is less than 210?
c. What is the probability that the sample mean falls between 210 and 29?



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  • CreatedJanuary 28, 2015
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