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Did promotion 2 lead to greater sales relative to the control (no promotion)?

Did promotion 2 lead to greater sales relative to the control (no promotion)?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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• regress percentchange compsales xl x2 Source | df MS Number of obs 30 F (3, 26) 4.30 Model | 366.987178 3 122.329059 Prob > F 0.0137 Residual I 739.602465 26 28.4462487 R-squared Adj R-squared 0.3316 0.2545 Total | 1106.58964 29 38.1582636 Root MSE 5.3335 percentcha e | Coef. Std. Err. t P>|t| [95% Conf. Interval] compsales I x1 | x2 | -.0003564 .0006446 -0.55 0.585 -.0016814 .0009687 8.418745 2.388454 3.52 0.002 3.509208 13.32828 2.824562 2.399678 1.18 0.250 -2.108047 7.75717 cons -.0917034 2.196923 -0.04 0.967 -4.607543 4.424136 Did promotion 2 lead to greater sales relative to the control (no promotion)? Yes, there is evidence No, there is no such evidence Cannot be determined from this output
Transcribed Image Text:• regress percentchange compsales xl x2 Source | df MS Number of obs 30 F (3, 26) 4.30 Model | 366.987178 3 122.329059 Prob > F 0.0137 Residual I 739.602465 26 28.4462487 R-squared Adj R-squared 0.3316 0.2545 Total | 1106.58964 29 38.1582636 Root MSE 5.3335 percentcha e | Coef. Std. Err. t P>|t| [95% Conf. Interval] compsales I x1 | x2 | -.0003564 .0006446 -0.55 0.585 -.0016814 .0009687 8.418745 2.388454 3.52 0.002 3.509208 13.32828 2.824562 2.399678 1.18 0.250 -2.108047 7.75717 cons -.0917034 2.196923 -0.04 0.967 -4.607543 4.424136 Did promotion 2 lead to greater sales relative to the control (no promotion)? Yes, there is evidence No, there is no such evidence Cannot be determined from this output
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