(b) Develop three-month and four-month moving averages for this time series. If required, round your answers to two decimal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
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(b) Develop three-month and four-month moving averages for this time series.
If required, round your answers to two decimal places.
3 Month
4 Month
Month
Sales
Moving Average Moving Average
1
9.6
2
9.2
3
9.3
4
9.7
5
9.8
6
9.7
7
9.7
8
10.6
9
9.9
10
9.6
11
9.4
12
9.7
Enter the Mean Square Errors for the three-month and the four-month moving average forecasts. If need
answers to three decimal digits.
4-month
3-month
moving
moving
average
average
MSE
Transcribed Image Text:(b) Develop three-month and four-month moving averages for this time series. If required, round your answers to two decimal places. 3 Month 4 Month Month Sales Moving Average Moving Average 1 9.6 2 9.2 3 9.3 4 9.7 5 9.8 6 9.7 7 9.7 8 10.6 9 9.9 10 9.6 11 9.4 12 9.7 Enter the Mean Square Errors for the three-month and the four-month moving average forecasts. If need answers to three decimal digits. 4-month 3-month moving moving average average MSE
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