Mathematics, 08.04.2020 02:13, igivehead666
The mean amount purchased by a typical customer at Churchill's Grocery Store is $26.00 with a standard deviation of $6.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 62 customers, answer the following questions.
(a)
What is the likelihood the sample mean is at least $27.00? (Round z value to 2 decimal places and final answer to 4 decimal places.)
Probability
(b)
What is the likelihood the sample mean is greater than $25.00 but less than $27.00? (Round z value to 2 decimal places and final answer to 4 decimal places.)
Probability
(c)
Within what limits will 90 percent of the sample means occur? (Round your answers to 2 decimal places.)
Answers: 3
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The mean amount purchased by a typical customer at Churchill's Grocery Store is $26.00 with a standa...
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