Help with z-score please!?

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Help with z-score please!?

Desired completion time: 112 days because I want to find the probability that the project will take 112 days or more
Expected completion time (mean): 75.09 days
Standard deviation: 2.12
Z is coming out to be 17.42 but that's not even in the table.
Please help!

2007-05-02 07:12:18 · 2 answers · asked by anjusmile 2 in Science & Mathematics ➔ Mathematics

2 answers

assuming your analysis is correct, you can report your result as less than the probability corresponding to the highest z-score.

2007-05-02 07:17:23 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋

If your mean is 75 and SD is 2.12, then you are as close to 100% as you can be. A z- score of 17 is 17 SDs away from the mean. Even z=3 is already 99%.

2007-05-02 07:19:50 · answer #2 · answered by Mike 1 · 0⤊ 0⤋