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samanthakay samanthakay
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A year ago

The following sample data contains the number of years of college and the current annual salary for a random sample of heavy equipment salespeople.


Years of College

Annual Income
(In Thousands)

2

20

2

23

3

25

4

26

3

28

1

29

4

27

3

30

4

33

4

35


a.Which variable is the dependent variable? Which is the independent variable?
b.Determine the least squares estimated regression line.
c.Predict the annual income of a salesperson with one year of college.
d.Test if the relationship between years of college and income is statistically significant at the .05 level of significance.
e.Calculate the coefficient of determination.
f.Calculate the sample correlation coefficient between income and years of college. Interpret the value you obtain.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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tulipfiascotulipfiasco
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A year ago
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samanthakay Author
wrote...

A year ago
This helped my grade so much Perfect
wrote...

Yesterday
Thanks
wrote...

2 hours ago
Good timing, thanks!
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