An issue of Popular Mechanics gives specifications and dimensions for various jet boats. The following table summarizes some of this information.

Model Base Price Engine Horsepower Baja Blast $8,395 120 Bayliner Jazz $8,495 90 Boston Whaler Rage 15 $11,495 115 Dynasty Jet Storm $8,495 90 Four Winds Fling $9,568 115 Regal Rush $9,995 90

Using the Excel output at the bottom of the page:

a. Determine the equation for the line of best fit.

b. Verify the calculation of t (t Stat) for engine horsepower.

c. Determine whether horsepower is an effective predictor of base price.

d. Verify the 95% confidence interval for 1.

Transcribed Image Text:

Model Base Price Engine Horsepower Sea-Doo Speedster $11,499 160 Sea Ray Sea Rayder $8,495 90 Seaswirl Squirt Suga Sand Mirage $8,495 115 $8,395 120