Answer to Question #341089 in Statistics and Probability for Hansi

Question

A company has recognized the importance of advertisement in promoting sales. The following data show its monthly sales both before and after advertisement. The period for comparison is taken from January to December in two successive years. Can it be concluded that the advertisement of the company has resulted in a significant increase in its sales?

Month Sales before advertisement Sales after the the advertisement January 21 24

February 15 18

March 31 43

April 21 32

May 48 50

June 50 61

July 54 53

August 68 72

September 46 51

October 70 76

November 65 72

December 53 59

Mean (paired differences) = 5.75 and SD (paired differences) = 3.58  

Answer 1

It's been a while since this question is posted here. Still, the answer hasn't been got. Consider converting this question to a fully qualified assignment, and we will try to assist. Please click the link below to proceed: Submit order