Question
A professor records the number of students who complain each week throughout the semester. If the class size is forty students, what are 3-sigma control
A professor records the number of students who complain each week throughout the semester. If the class size is forty students, what are 3-sigma control limits for this class? Construct a control chart and interpret the data.
| Week number | Complaints |
| 1 | 3 |
| 2 | 2 |
| 3 | 4 |
| 4 | 2 |
| 5 | 1 |
| 6 | 7 |
| 7 | 8 |
| 8 | 5 |
| 9 | 2 |
| 10 | 7 |
| 11 | 1 |
| 12 | 3 |
| 13 | 2 |
| 14 | 8 |
| 15 | 4 |
Factors for Calculating Three-Sigma Limits for the
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Concepts of Database Management
Authors: Philip J. Pratt, Joseph J. Adamski
7th edition
978-1111825911, 1111825912, 978-1133684374, 1133684378, 978-111182591
