Normal | |
mu | 722 |
sigma | 189 |
| |
xi | P(X<=xi) |
151 | 0.0013 |
263 | 0.0076 |
532 | 0.1574 |
721 | 0.4979 |
810 | 0.6793 |
961 | 0.8970 |
| |
P(X<=xi) | xi |
0.11 | 490.1862 |
0.12 | 499.9275 |
0.24 | 588.5088 |
0.31 | 628.2843 |
0.38 | 664.2641 |
0.76 | 855.4912 |
0.89 | 953.8138 |
Use the cumulative normal probability excel output above (dealingwith the amount of money parents spend per child on back-to-schoolitems) to answer the following question.
The probability is 0.38 that the amount spent on a randomlyselected child will be between two values (in $) equidistant fromthe mean. The lower of these equidistant points is provided in theexcel output above. Use the lower endpoint and some math to findthe upper endpoint.
