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describe the probability value using normal distribution.

The despicable amount purchased by a typical customer at Churchill's Grocery Store is $23.50 with a standard deviation of $5.00. Presume the distribution of amounts purchased follows the normal distribution. For a ex of 50 customers answer the following problems.

1) What is the likelihood the sample mean is at least $25.00?

2) What is the likelihood the sample mean is greater than $22.50 but less than $25.00?

3) Within what limits will 90 percent of the sample means occur?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M919419

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