MATH 533 Week 7 Course Project Part C: Regression and Correlation Analysis | Already GRADED A+

Math 1


Running Head: Course Project Part C




Regression Model


MATH – 533 - 60846




Ans .1


Minitab Result

Regression Analysis: Sales versus Calls

, Math 2


The regression equation is

Sales = 9.638 + 0.2018 Calls


Fitted Line Plot
Sales = 9.638 + 0.2018 Calls
55
S 2.05708
R-Sq 75.9%
R-Sq(adj) 75.7%
50



45
Sales




40



35



30
120 130 140 150 160 170 180 190 200 210
Calls



It is evident with the help of scatter graph trend line that there is positive relationship

between Sales and calls. If number of calls increases the sales also increase and vice versa.

Ans. 2

With help of Minitab, the regression equation is mentioned below as:

Minitab Result

Regression Analysis: Sales versus Calls



The regression equation is

Sales = 9.638 + 0.2018 Calls

Ans. 3