The director of an alumni association wants to determine whether there is any type of relationship between the amount of an alumni's contribution (in dollars) and the number of years the alumnus has been out of school. Based on the data below, decide if the correlation between the number of years and the amount of the contribution is significant at the alpha value of 0.05. Years x 1 10 6. 19 Contribution 640 290 |170 45 |70 80 y Determine r? Determine Sest а. b. с. Find the 95% prediction interval when x = 8

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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The director of an alumni association wants to
determine whether there is any type of relationship
between the amount of an alumni's contribution (in
dollars) and the number of years the alumnus has
been out of school. Based on the data below,
decide if the correlation between the number of
years and the amount of the contribution is
significant at the alpha value of 0.05.
Years x
1
3
10
Contribution
640
290
|170
|45
70
80
y
Determine r²
Determine Sest
а.
b.
с.
Find the 95% prediction interval when x = 8
Transcribed Image Text:The director of an alumni association wants to determine whether there is any type of relationship between the amount of an alumni's contribution (in dollars) and the number of years the alumnus has been out of school. Based on the data below, decide if the correlation between the number of years and the amount of the contribution is significant at the alpha value of 0.05. Years x 1 3 10 Contribution 640 290 |170 |45 70 80 y Determine r² Determine Sest а. b. с. Find the 95% prediction interval when x = 8
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