A random sample of size n = 50 is taken from a population with mean =
Question:
A random sample of size n = 50 is taken from a population with mean μ = −9.5 and standard deviation σ = 2.
Calculate the expected value and the standard error for the sampling distribution of the
a. Sample mean.
b. What is the probability that the sample mean is less than −10?
c. What is the probability that the sample mean falls between −10 and −9?
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Related Book For 
Business Statistics Communicating With Numbers
ISBN: 9781259957611
3rd Edition
Authors: Sanjiv Jaggia
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