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In: Statistics and Probability

Run a linear regression using Excel’s Data Analysis regression tool. Construct the linear regression equation and...

Run a linear regression using Excel’s Data Analysis regression tool. Construct the linear regression equation and determine the predicted total sales value if the number of promotions is 6. Is there a significant relationship? Clearly explain your reasoning using the regression results.

Number of Promotions Total Sales
3 2554
2 1746
11 2755
14 1935
15 2461
4 2727
5 2231
14 2791
12 2557
4 1897
2 2022
7 2673
11 2947
11 1573
14 2980

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