3. A professor is interested in determining the impact of hours worked per day by students (variable X) on final quiz scores (Y). A random sample of ten students is taken with the following results on X and Y: 10 8 2 6. 6. 10 4 5 2 4 a. Determine the simple regression equation (by hand) that best fits this data. b. Calculate and interpret the R-Square and the adjusted R-Square for this model. c. Using a 0.05 level of significance, test to see if this is a good or bad model using the correlation test. 으0973으s735
3. A professor is interested in determining the impact of hours worked per day by students (variable X) on final quiz scores (Y). A random sample of ten students is taken with the following results on X and Y: 10 8 2 6. 6. 10 4 5 2 4 a. Determine the simple regression equation (by hand) that best fits this data. b. Calculate and interpret the R-Square and the adjusted R-Square for this model. c. Using a 0.05 level of significance, test to see if this is a good or bad model using the correlation test. 으0973으s735
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:3. A professor is interested in determining the impact of hours worked per day by students
(variable X) on final quiz scores (Y). A random sample of ten students is taken with the
following results on X and Y:
10
8
2
6.
7
6.
3
10
4
7
8
3
4
5
a. Determine the simple regression equation (by hand) that best fits this data.
b. Calculate and interpret the R-Square and the adjusted R-Square for this model.
c. Using a 0.05 level of significance, test to see if this is a good or bad model using the
correlation test.
d. Using a 0.05 level of significance, test to see if this is a good or bad model using the
t-test on slope.
e. Using a 0.05 level of significance, test to see if this is a good or bad model using the
F-test on slope.
f. Looking over your full results, what can you conclude about the relationship between
hours worked per day (X) and final quiz scores (Y)?
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