| Sample | Defects |
| 1 | 9 |
| 2 | 9 |
| 3 | 10 |
| 4 | 11 |
| 5 | 10 |
| 6 | 12 |
| 7 | 13 |
| 8 | 8 |
| 9 | 12 |
| 10 | 9 |
| 11 | 7 |
| 12 | 13 |
| 13 | 8 |
| 14 | 9 |
| 15 | 13 |
| 16 | 11 |
Frank Inc. has decided to use a p -Chart with an alpha risk of 6
% to monitor the proportion of defective industrial belts produced
by their production process. The quality control manager randomly
samples 100 industrial belts at 16 successively selected time
periods and counts the number of defective industrial belts in the
sample.
What is the z -value associated with the level of significance
stated in the problem? Round your answer to two decimal places.
