In their 2003 and 2008 studies on how long wireless customers have to spend on hold before speaking with a customer service representative, J.D. Power and Associates found the mean times to be 3.3 minutes and 4.4 minutes, respectively. Assume that the data below shows in minutes, for times on hold during the 2003 and 2008 studies. Use a one-tail test and the 0.05 level of significance in concluding whether the population mean time for 2008 could be greater than that for 2003. Determine and interpret the p-value for the test. 2008_mins 2003_mins 3.5 5.7 7.2 3.3 1.7 1.8 4.1 3.2 5.5 3.4 5.6 2.4 3.2 3.3 6.1 4.6 6.7 3.4 3.0 3.3 2.5 3.3 6.6 2.3 1.2 3.2 2.2 4.7 2.4 2.5 1.5 1.6 5.5 3.5 3.4 2.5 4.5 5.6 6.6 1.4
In their 2003 and 2008 studies on how long wireless customers have to spend on hold before speaking with a customer service representative, J.D. Power and Associates found the mean times to be 3.3 minutes and 4.4 minutes, respectively. Assume that the data below shows in minutes, for times on hold during the 2003 and 2008 studies. Use a one-tail test and the 0.05 level of significance in concluding whether the population mean time for 2008 could be greater than that for 2003. Determine and interpret the p-value for the test. 2008_mins 2003_mins 3.5 5.7 7.2 3.3 1.7 1.8 4.1 3.2 5.5 3.4 5.6 2.4 3.2 3.3 6.1 4.6 6.7 3.4 3.0 3.3 2.5 3.3 6.6 2.3 1.2 3.2 2.2 4.7 2.4 2.5 1.5 1.6 5.5 3.5 3.4 2.5 4.5 5.6 6.6 1.4
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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In their 2003 and 2008 studies on how long wireless customers have to spend on hold before speaking with a customer service representative, J.D. Power and Associates found the mean times to be 3.3 minutes and 4.4 minutes, respectively. Assume that the data below shows in minutes, for times on hold during the 2003 and 2008 studies. Use a one-tail test and the 0.05 level of significance in concluding whether the population mean time for 2008 could be greater than that for 2003. Determine and interpret the p-value for the test.
| 2008_mins | 2003_mins |
| 3.5 | 5.7 |
| 7.2 | 3.3 |
| 1.7 | 1.8 |
| 4.1 | 3.2 |
| 5.5 | 3.4 |
| 5.6 | 2.4 |
| 3.2 | 3.3 |
| 6.1 | 4.6 |
| 6.7 | 3.4 |
| 3.0 | 3.3 |
| 2.5 | 3.3 |
| 6.6 | 2.3 |
| 1.2 | 3.2 |
| 2.2 | 4.7 |
| 2.4 | 2.5 |
| 1.5 | 1.6 |
| 5.5 | 3.5 |
| 3.4 | 2.5 |
| 4.5 | 5.6 |
| 6.6 | 1.4 |
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