Find the Weighted Least Squares Line for the Data Set

question 18

Essay

Find the weighted least squares line for the data set

, with the inner three points weighted four times as much as the outer two points.

---

Definitions:

Credit Sales

Transactions where goods or services are sold and payment is deferred to a later date, contributing to a company's accounts receivable.

COGS

Cost of Goods Sold; the direct costs associated with the production of goods sold by a company, including materials and labor.

Revenue Forecast

An estimate of the amount of money a company will generate from sales in a future period.

Cost Ratio

The measure of the costs associated with a financial transaction or an investment, relative to its benefits or returns.