The length of time it takes to complete a word puzzle is found to be normally distributed with a mean of 81 seconds and a standard deviation of 8 seconds. Using the 50% -34% -14% figures, find the longest time to complete the word puzzle that a person can have while being in the bottom most percentages of scores for each of the following percentages. (a) 16% (b) 84% (c) 2% (d) 98% (e) 50%

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The length of time it takes to complete a word puzzle is found to be normally distributed with a mean of 81 seconds and a standard deviation of 8 seconds. Using the 50%–34%–14% figures, find the longest time to complete the word puzzle that a person can have while being in the bottom most percentages of scores for each of the following percentages.

(a) 16%  
(b) 84%  
(c) 2%  
(d) 98%  
(e) 50%
Transcribed Image Text:The length of time it takes to complete a word puzzle is found to be normally distributed with a mean of 81 seconds and a standard deviation of 8 seconds. Using the 50%–34%–14% figures, find the longest time to complete the word puzzle that a person can have while being in the bottom most percentages of scores for each of the following percentages. (a) 16% (b) 84% (c) 2% (d) 98% (e) 50%
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