A researcher desires to know whether the typing speed of a secretary (in 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.

Speed x	Time y
48	7
74	4
52	8
79	3.5
83	2
56	6
85	2.3
63	5
88	2.1
74	4.5
90	1.9
92	1.5

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.

Compute the value of the correlation coefficient.

Select one:

a. .9439.

b. -.9490.

c. -.9742.

d. .5136.

Solutions

Expert Solution

orchestra answered 1 year ago

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