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confidence level 99.40 ? % critical value (za/2) ? 2.97 sample mean 91.30 ? standard error ? ? margin of error ? 31.48 73.70 ?
| confidence level | 99.40 | ? % |
| critical value (za/2) | ? | 2.97 |
| sample mean | 91.30 | ? |
| standard error | ? | ? |
| margin of error | ? | 31.48 |
| 73.70 | ? | |
| upper limit | ? | 146.78 |
When constructing the confidence interval a population mean, assuming the population standard deviation is known, we use the following formula:
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Calculus And Its Applications Expanded Version
Authors: Marvin L Bittinger, David J Ellenbogen, Scott J Surgent
1st Edition
0321882512, 9780321882516
