Exhibit 11.15
The following questions use the data below.
The owner of Tim's Toys wants to predict monthly sales. He has collected data for 12 months. He needs your help in analyzing this data using weighted moving averages. 
-Refer to Exhibit 11.15. What formulas should go in cells C5:C16 of the spreadsheet if Bill uses a 2 month weighted moving average forecasting model?
Definitions:
Postemployment Benefits
Benefits, including pension plans and healthcare, that an employee is entitled to upon retirement or termination of service.
Actuarial Information
Data and analysis provided by actuaries, involved in assessing risks and uncertainties, particularly in the insurance and finance industries.
Pension Fund
A pool of funds accumulated from contributions to provide retirement benefits to employees.
Interest Rate
The percentage of a loan amount charged by the lender to the borrower for the use of money, expressed as a yearly rate.
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