Weekly Sales of Copy Paper at Cubicle Suppliers Are Provided

question 8

Essay

Weekly sales of copy paper at Cubicle Suppliers are provided in the table below.Compute a three-period moving average and a four-period moving average for weeks 5,6,and 7.Compute the MAD for both forecasting methods.Which model is more accurate? Forecast week 8 with the more accurate method.
Week Sales (cases)
1 17
2 21
3 27
4 31
5 19
6 17
7 21

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Definitions:

Income Tax Expense

The charge against earnings resulting from the tax owed by an entity on its taxable income, reflecting the cost of income taxes.

Pre-Tax Book Income

Pre-Tax Book Income is the income earned by a business before tax, as reported in its financial statements, not considering taxable income adjustments.

Tax Depreciation

The depreciation expense allowed by tax authorities for the purpose of reducing taxable income, which may differ from book depreciation.

Book Depreciation

The method used by businesses to allocate the cost of a physical asset over its useful life for accounting and tax purposes.