A Local Tire Dealer Wants to Predict the Number of Tires

question 34

Essay

A local tire dealer wants to predict the number of tires sold each month.The dealer believes that the number of tires sold is a linear function of the amount of money invested in advertising.The dealer randomly selects 6 months of data consisting of tire sales (in thousands of tires)and advertising expenditures (in thousands of dollars).The equation of the least squares line is, $\hat { Y }$ = 3 + 1x.
-Provide an interpretation of the estimated y-intercept.

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Definitions:

Exports

Commodities or services sent overseas from one country to another aimed at commerce or trade.

Imports

Goods and services brought into a country from abroad for sale, which can affect the domestic economy in terms of prices, jobs, and trade balances.

Skateboards

A type of sport equipment used primarily for the activity of skateboarding, consisting of a board with wheels attached.

Total Surplus

The sum of consumer surplus and producer surplus in a market, representing the total net benefit to society from the production and consumption of a good or service.