A Local Tire Dealer Wants to Predict the Number of Tires

question 47

Essay

A local tire dealer wants to predict the number of tires sold each month.He believes that the number of tires sold is a linear function of the amount of money invested in advertising.He randomly selects 6 months of data consisting of tire sales (in thousands of tires)and advertising expenditures (in thousands of dollars).Based on the data set with 6 observations,the simple linear regression model yielded the following results. Find the rejection point for the t statistic at α = .05 and test H₀: β₁ ≤ 0 vs.H_a: β₁ > 0.

---

Definitions:

Tinnitus

The perception of noise or ringing in the ears, a common problem that can result from various underlying causes and can affect one's quality of life.

Nausea

A feeling of discomfort in the stomach often characterized by an urge to vomit.

Vomiting

The forceful expulsion of the contents of the stomach through the mouth.

Cryotherapy

A treatment method involving the use of extreme cold to freeze and remove abnormal tissue.