Marianne Kramer, the owner of Handy Man Rentals, rents carpet cleaners to contractors and walk-in customers. She is interested in arriving at a forecast of rentals so that she can order the correct quantities of supplies that go with the cleaners. Data for the last 10 weeks are shown here.Week         Rentals                 Week              Rentals1                  15                            6                      202                  16                            7                       243                 24                            8                       274                  18                           9                        185                   23                         10                        16a. Prepare a forecast for weeks 6 through 10 by using a 4-week moving average. What is the forecast for week 11?b. Calculate the mean absolute deviation as of the end of week 10.

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Chapter2: Introduction To Spreadsheet Modeling
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Marianne Kramer, the owner of Handy Man Rentals, rents carpet cleaners to contractors and walk-in customers. She is interested in arriving at a forecast of rentals so that she can order the correct quantities of supplies that go with the cleaners. Data for the last 10 weeks are shown here.
Week         Rentals                 Week              Rentals
1                  15                            6                      20
2                  16                            7                       24
3                 24                            8                       27
4                  18                           9                        18
5                   23                         10                        16
a. Prepare a forecast for weeks 6 through 10 by using a 4-week moving average. What is the forecast for week 11?
b. Calculate the mean absolute deviation as of the end of week 10.

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