Question

39) 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, compute the value of the correlation coefficient between the number of years and the amount of the contribution. Years $x$ | 1 | 2 | 3 | 10 | 9 | 7 Contribution $y$ | 550 | 100 | 220 | 40 | 70 | 75 A) 0.718 B) -1.282 C) -0.718 D) -0.019 ID: BESB8e 10.1.2-9+

          39) 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, compute the value of the correlation coefficient
between the number of years and the amount of the contribution.
Years $x$ | 1 | 2 | 3 | 10 | 9 | 7
Contribution $y$ | 550 | 100 | 220 | 40 | 70 | 75
A) 0.718
B) -1.282
C) -0.718
D) -0.019
ID: BESB8e 10.1.2-9+

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39) 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, compute the value of the correlation coefficient
between the number of years and the amount of the contribution.
Years x | 1 | 2 | 3 | 10 | 9 | 7
Contribution y | 550 | 100 | 220 | 40 | 70 | 75
A) 0.718
B) -1.282
C) -0.718
D) -0.019
ID: BESB8e 10.1.2-9+

Added by Lourdes J.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Ariana Nash

11/23/2022

Step 1

$$ \bar{x} = \frac{1 + 2 + 3 + 10 + 9 + 7}{6} = 5.33 $$ Show more…

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39) 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, compute the value of the correlation coefficient between the number of years and the amount of the contribution. Years x | 1 | 2 | 3 | 10 | 9 | 7 Contribution y | 550 | 100 | 220 | 40 | 70 | 75 A) 0.718 B) -1.282 ID: BESB8e 10.1.2-9+ C) -0.718 D) -0.019

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