1. [2] The customer care manager at a cell phone company keeps track of how long each help-line caller spends on hold before speaking to a customer service representative. He finds that the distribution of wait times for all callers has a mean of 12.8 minutes and a standard deviation of 7.2 minutes. The distribution is moderately skewed to the left. Suppose the manager takes a random sample of 25 callers and calculates thor mean wait time x. What is the shape of the sampling distribution? Justify your answer.

1. [2] The customer care manager at a cell phone company keeps track of how long each help-line caller spends on hold before speaking to a customer service representative. He finds that the distribution of wait times for all callers has a mean of 12.8 minutes and a standard deviation of 7.2 minutes. The distribution is moderately skewed to the left. Suppose the manager takes a random sample of 25 callers and calculates thor mean wait time x. What is the shape of the sampling distribution? Justify your answer.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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