Using Excel and Data Analysis, you must enter the data given below and establish whether there is any relationship between the promotion and sales and establish why or why you do not consider that said answer is correct.

Suppose you have a Marketing team under your charge, one of the analysts brings you the following information so that you can analyze it and determine if there is any relationship between the variables.

Promotion

Sales

10000

25000

15000

23000

20000

21000

25000

30000

In light of these four data, go to Excel and using Data Analysis, perform a correlation analysis between the variables and determine whether or not there is indeed a relationship between the two.