In: Statistics and Probability
The following output was obtained from a regression analysis of
the dependent variable Rating and an...
- The following output was obtained from a regression analysis of
the dependent variable Rating and an independent variable Price.
(10 points)
ANOVA
|
|
|
|
|
|
df
|
SS
|
MS
|
F
|
Regression
|
1
|
372.707
|
372.707
|
42.927
|
Residual
|
15
|
130.234
|
8.682
|
|
Total
|
16
|
502.941
|
|
|
|
|
|
|
|
|
Coefficients
|
Standard Error
|
t Stat
|
P-value
|
Intercept
|
45.623
|
3.630
|
12.569
|
0.000
|
Price
|
0.107
|
0.016
|
6.552
|
0.000
|
- Use the critical value approach to perform an F test for the
significance of the linear relationship between Rating and Price at
the 0.05 level of significance.
- Calculate the coefficient of determination.
- What percentage of the variability of Rating can be explained
by its linear relationship with Price? What is the sample
correlation coefficient?
- What is the estimated regression equation?
- Use the p-value approach to perform a t test for the
significance of the linear relationship between Price and Rating at
the 0.05 level of significance.