The mean amount purchased by a typical customer at Churchill’sGrocery Store is $23.59, with a standard deviation of $5.00. Assume thedistribution of amounts purchased follows the normal distribution. For asample of 56 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 $22.50but less than $25.00?c. Within what limits will 90% of the sample means occur?
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