The formula for a regression line is y = a + bx For the regression equation shown below (assume values in US$) average monthly sales=126+172 advertising cost Which among the following statements is/are true? (a) for every increase of $1.00 in advertising cost, the expected average monthly sales are predicted to increase by $172.00 (b) for every increase of $1.00 in advertising cost, the expected average monthly sales are predicted to increase by $126.00 (c) this linear regression has positive relationship on business (d) this linear regression has negative relationship on business (e) this linear regression has no relationship on business
The formula for a regression line is y = a + bx For the regression equation shown below (assume values in US$) average monthly sales=126+172 advertising cost Which among the following statements is/are true? (a) for every increase of $1.00 in advertising cost, the expected average monthly sales are predicted to increase by $172.00 (b) for every increase of $1.00 in advertising cost, the expected average monthly sales are predicted to increase by $126.00 (c) this linear regression has positive relationship on business (d) this linear regression has negative relationship on business (e) this linear regression has no relationship on business
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 4P
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