A customer service department asks its customers to rate their over-the-phone service on a scale of 1-20 immediately after their service has been completed. The department then matches each customer's rating with the number of minutes the person waited on hold. The accompanying table shows the ratings and number of minutes on hold for 10 randomly selected customers. Minutes Rating 4 16 9 13 0 19 5 11 7 14 2 15 9 14 4 20 8 15 4 12
A customer service department asks its customers to rate their over-the-phone service on a scale of 1-20 immediately after their service has been completed. The department then matches each customer's rating with the number of minutes the person waited on hold. The accompanying table shows the ratings and number of minutes on hold for 10 randomly selected customers. Minutes Rating 4 16 9 13 0 19 5 11 7 14 2 15 9 14 4 20 8 15 4 12
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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A customer service department asks its customers to rate their over-the-phone service on a scale of 1-20 immediately after their service has been completed. The department then matches each customer's rating with the number of minutes the person waited on hold. The accompanying table shows the ratings and number of minutes on hold for 10 randomly selected customers.
Minutes | Rating |
4 | 16 |
9 | 13 |
0 | 19 |
5 | 11 |
7 | 14 |
2 | 15 |
9 | 14 |
4 | 20 |
8 | 15 |
4 | 12 |
Construct a 95% confidence interval for the average rating given by a customer who waits 14 minutes.
UCL=
LCL=
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