Linear Regression for a Shampoo Company
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Management of a shampoo company introduced a new 13.5 ounce pack and used an existing machine with some modifications to fill it. To check the consistency, the following data was used.
a. using 5 day moving average, what will the data for the 21st day be?
b. Using Linear Regression, what will the 21st day be?
Day Data
1 13.00
2 14.10
3 14.20
4 12.80
5 13.10
6 14.00
7 12.90
8 13.60
9 13.20
10 13.70
11 13.30
12 14.00
13 14.10
14 13.10
15 14.10
16 13.60
17 14.30
18 14.40
19 13.80
20 13.80
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Solution Summary
This solution shows step-by-step calculations in an Excel file to determine the 21st day using the 5-day moving average and linear regression. A graphical display is included for the linear regression.
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