One cable company claims that it has excellent customer service in fact, the company advertises that a technican will arrive within 55 minutes after a service call is placed. One frustrated customer believes this is not accurate, daming that it takes over 55 minutes for the cable technician to arrive. The customer asks a simple random sample of 16 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 60.1 minutes with a standard deviation of 11.2 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.10 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 technican will arrive within 55 minutes after a service call is placed. One frustrated customer believes this is not accurate, daming that it takes over 55 minutes for the cable technician to arrive. The customer asks a simple random sample of 16 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 60.1 minutes with a standard deviation of 11.2 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.10 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
Section11.4: Collecting Data
Problem 3E
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