Question

For Exercise 5, find the 90% prediction interval for time when the speed is 72 words per minute.
A researcher desires to know whether the typing speed of a secretary (in words per minute) is related to the time (in hours) that it takes the secretary to learn to use a new word processing program. The data are shown.
If there is a significant relationship, predict the time it will take the average secretary who has a typing speed of 72 words per minute to learn the word processing program.


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  • CreatedSeptember 02, 2015
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