Final answer:
The subject of this question is Mathematics and the grade level is High School. The multiple regression equation for predicting Y by X1 through X5 is provided with definitions for each variable.
Step-by-step explanation:
The subject of this question is Mathematics and the grade level is High School.
The multiple regression equation for predicting Y by X1 through X5 is:
Y = Sales per month
X1 = Amount spent on printed ads
X2 = Amount spent on text messages
X3 = Amount spent on radio ads
X4 = Amount spent on customer service support
X5 = Amount spent on Internet ads
There are a total of n=50 observations used in the analysis.