d. Determine a linear regression line equation. e. Interpret the meaning of the slope value in equation (c) above. f. Calculate the coefficient of determination and explain this value.

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1. A researcher desires to know whether the typing speed of a secretary (in words per minute) is related to the time (in hours) that is takes the secretary to learn to use a new word processing program. The data are shown below. d. Determine a linear regression line equation. e. Interpret the meaning of the slope value in equation (c) above. f. Calculate the coefficient of determination and explain this value.
Speed, x
48
74
52
79
83
56
85
63
88
74
90
92
Time, y
4
8.
3.5
6.
2.3
2.1
4.5
1.9
1.5
Transcribed Image Text:Speed, x 48 74 52 79 83 56 85 63 88 74 90 92 Time, y 4 8. 3.5 6. 2.3 2.1 4.5 1.9 1.5
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