| Question 19 P. 305 |
| Greater than 450 | 0.8272060442 | norm.dist |
| | 0.8264 | z table |
| | 0.8271 | ti calculator |
| (-1E99, 450, 367, 88) | 0.1727939558 | | ti calculator left infinity -1E99 | or | -999999 |
| | | | ti calculator right infinity1E99 | or | 999999 |
| | | | Subtract Area 1-.8272= .172 |
| b. Less than 250 | norm.dist | 0.09183404 |
| | norm.dist | 0.09183404 | probability that x is 250 |
| C. Probability that x is between 250 and 450 | norm.dist | 0.8272060442 | probabilty that x is 450 |
| | | 0.7353720042 |
| | norm.inv | 222.2528808283 |
| D. Find x value- represents lower 5% category |
| | ti calculator : 2nd/Vars/InvNorm | (.05,367,88) | 222.25 |
Alibrea Tuskata
Ch6Q19ExcelandTI1.xlsx
