2019-01-28T10:01:30+00:00

# a. What is the likelihood the sample mean is at least \$25.00?

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# The mean amount purchased by a typical customer at Churchill

The mean amount purchased by a typical customer at Churchill`s Grocery Store is \$23.50 with a standard deviation of \$5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the following questions.
a. What is the likelihood the sample mean is at least \$25.00?
b. What is the likelihood the sample mean is greater than \$22.50 but less than \$25.00?
c. Within what limits will 90 percent of the sample means occur

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