A sample of 9 engine cylinders is randomly selected and the following diameters are measured in...
A sample of 9 engine cylinders is randomly selected and the following diameters are measured in inches. Give a point estimate for the population standard deviation. Round your answer to three decimal places. 8.61,8.62,8.45,8.46,8.56,8.58,8.49,8.59,8.57
Homework Answers
The best point estimate for the population standard deviation =Sample standard deviation =0.064
| x |  |
|
| 8.61 | 0.003869 | |
| 8.62 | 0.005213 | |
| 8.45 | 0.009565 | |
| 8.46 | 0.007709 | |
| 8.56 | 0.000149 | |
| 8.58 | 0.001037 | |
| 8.49 | 0.003341 | |
| 8.59 | 0.001781 | |
| 8.57 | 0.000493 | |
| Total | 76.93 |  0.033156 |
Sample standard deviation
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