Question
An online store randomly selects 170 customers every week to see the percentage of customers who would not recommend the store to their friends. In
An online store randomly selects 170 customers every week to see the percentage of customers who would not recommend the store to their friends. In the past five weeks, the numbers of those who said they would not recommend the store to friends are given in the table below.
| SAMPLE | |||||
| 1 | 2 | 3 | 4 | 5 | |
| Number of retests | 5 | 5 | 7 | 6 | 4 |
(1) What is the value of p (standard deviation of p-bar)? (Keep 4 decimal places.)
(2) Determine the lower control limit for a two-sigma p-chart. (Do not convert to percentage. Keep 4 decimal places.)
| LCL | |
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Purchasing and Supply Chain Management
Authors: W.C Benton
3rd edition
78024110, 978-0078117091, 78117097, 978-0078024115
