4. Exercise 4.4 Cascade Pharmaceuticals Company developed the folowing regression model, using time-series data from the past 33 quarters, for one of its nonprescription cold remedies: Y--1.04 +0.24X1-0.27X2 where Y- quarterly sales (in thousands of cases) of the cold remedy X - Cascade's quarterly advertising (x $1,000) for the cold remedy X- competitors' advertising for similar products (x $10,000) Here is additional information concerning the regression model: = 0.052, ne- 0.070, R-0.640, , = 1.63, F-atatistic 31.402, and Durbin-Watson (d) statistic = 0.499. Which of the independent variables (if any) appears to be statistically significant (at the 0.05 level) in explaining sales of the cold remedy? (Hint: taas/ 1- 2.042.) Check all that apply. O X. O X:
4. Exercise 4.4 Cascade Pharmaceuticals Company developed the folowing regression model, using time-series data from the past 33 quarters, for one of its nonprescription cold remedies: Y--1.04 +0.24X1-0.27X2 where Y- quarterly sales (in thousands of cases) of the cold remedy X - Cascade's quarterly advertising (x $1,000) for the cold remedy X- competitors' advertising for similar products (x $10,000) Here is additional information concerning the regression model: = 0.052, ne- 0.070, R-0.640, , = 1.63, F-atatistic 31.402, and Durbin-Watson (d) statistic = 0.499. Which of the independent variables (if any) appears to be statistically significant (at the 0.05 level) in explaining sales of the cold remedy? (Hint: taas/ 1- 2.042.) Check all that apply. O X. O X:
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section: Chapter Questions
Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...
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