5. Shown below is a portion of a computer output for regression analysis relatin
ID: 3389240 • Letter: 5
Question
5. Shown below is a portion of a computer output for regression analysis relating y (dependent variable) and x (independent variable).
ANOVA
df
SS
Regression
1
882
Residual
20
4000
Total
21
4882
Coefficients
Standard Error
t Stat
Intercept
5.00
3.56
Variable x
6.30
3.00
a.
What has been the sample size for the above?
b.
Perform a t-test and determine whether or not x and y are related. Use a = 0.05.
c.
Perform an F-test and determine whether or not x and y are related. Use a = 0.05.
d.
Compute the coefficient of determination.
e.
Interpret the meaning of the value of the coefficient of determination that you found in d. Be very specific.
ANOVA
df
SS
Regression
1
882
Residual
20
4000
Total
21
4882
Coefficients
Standard Error
t Stat
Intercept
5.00
3.56
Variable x
6.30
3.00
Explanation / Answer
5. Shown below is a portion of a computer output for regression analysis relatin
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