Information from the American Institute of Insurance indicates the mean amount of life insurance per household in
Question:
a. If we select a random sample of 50 households, what is the standard error of the mean?
b. What is the expected shape of the distribution of the sample mean?
c. What is the likelihood of selecting a sample with a mean of at least $112,000?
d. What is the likelihood of selecting a sample with a mean of more than $100,000?
e. Find the likelihood of selecting a sample with a mean of more than $100,000 but less than $112,000.
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Related Book For
Statistical Techniques In Business And Economics
ISBN: 356
16th Edition
Authors: Douglas Lind, William Marchal
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