One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 4545 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 4545 minutes for the cable technician to arrive. The customer asks a simple random sample of 44 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 54.354.3 minutes with a standard deviation of 6.46.4 minutes. Assume that the population distribution is approximately normal. Test the customer’s claim at the 0.100.10 level of significance. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places.

One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 4545 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 4545 minutes for the cable technician to arrive. The customer asks a simple random sample of 44 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 54.354.3 minutes with a standard deviation of 6.46.4 minutes. Assume that the population distribution is approximately normal. Test the customer’s claim at the 0.100.10 level of significance. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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