Exhibit 18

question 95

Essay

Exhibit 18.8.Quarterly sales of a department store for the last 7 years are given in the following table. The Excel scatterplot shown above indicates that the quarterly sales have an increasing trend and seasonality.Therefore,the linear regression model,Sales = β₀ + β₁Qtr1 + β₂Qtr2 + β₃Qtr3 + β₄t + ε with three seasonal dummy variables Qtr1,Qtr2 and Qtr3,and the decomposition method are proposed to make sales forecasts.For the regression model,the following Excel partial output is available. Refer to Exhibit 18.8.Using the regression equation for the linear trend model with seasonal dummy variables,what can be said about the sales in Quarter 4 compared to the sales in Quarter 1?

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Definitions:

Subsidiary Ledger

a detailed ledger that contains the financial transactions of a specific subsidiary account, summarizing its details, and supporting the general ledger.

Control Account

A general ledger account that summarizes the balances of a set of detailed subsidiary ledger accounts.

General Ledger

A complete record of all financial transactions over the life of a company, serving as the primary source of information used to create financial statements.

Due Date

A Due Date is the specific day by which a task, obligation, or payment is required to be completed or submitted.