launched social media strategy is effective is not dependent on which region they belong to.
PART B
1. The following output was obtained from a regression analysis of the dependent variable Ratingand an independent variable Price. (10 points)
ANOVA
DF
SS
MS
F

Regression1372.707372.70742.927Residual15130.2348.682Total16502.941CoefficientsStandard Errort StatP-valueIntercept45.6233.63012.5690.000Price0.1070.0166.5520.000a. 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.
b. Calculate the coefficient of determination.
c. What percentage of the variability of Rating can be explained by its linear relationship with Price? What is the sample correlation coefficient?
d. What is the estimated regression equation?
e. 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.

2. The estimated regression equation for a model involving two independent variables and 65 observations is:yhat = 55.17+1.2X1 -0.163X2 Other statistics produced for analysis include: SSR = 12370.8, SST = 35963.0, Sb1 = 0.33, Sb2 =0.20. (16 points)a. Interpret b1 and b2 in this estimated regression equation