Compute and interpret and r2 and r2a

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Reference no: EM13242126

Waterskiing and wakeboarding are two popular water-sports. Finding a model that best suits your intended needs, whether it is waterskiing, wakeboading, or general boating, can be a difficult task. WaterSki magazine did extensive testing for 88 boats and provided a wide variety of information to help consumers select the best boat. A portion of the data they reported for 16 boats with a length of between 20 and 22 feet follows. Beam is the maximum width of the boat in inches, HP is the horsepower of the boat's engine, and TopSpeed is the top speed in miles per hour (mph).

Make and Model                                 Beam              HP                   TopSpeed

Calabria Air Pro V2                 100                              330                  45.3

CCAN 210                                          91                                330                  47.3

CCAN SV-211                                    93                                375                  46.9

CCSN 206 Limited                  91                                330                  46.7

Gekko GTR 22                                   96                                375                  50.1

Gekko GTS 20                                   83                                375                  52.2    

M Response LXi                                 93.5                             340                  47.2

M Sunsette LXi                                   98                                400                  46

M Wakesetter VLX                 98                                400                  47.3

M vRide                                              93.5                             340                  44.5

M Ride XTi                                          93.5                             320                  44.5

Mstr ProStar 209                                96                                350                  42.5

Mstr X1                                               90                                310                  45.8

Mstr X2                                               94                                310                  42.8

Mstr X9                                               96                                350                  43.2

MB Sprts 190 Plus                  92                                330                  45.3

a. Using these data, develop an estimated regression equation relating the top speed with the boat's beam and horsepower rating. 

b. The Svfara SV609 has a beam of 85 inches and an engine with a 330 horsepower rating. Use the estimated regression equation developed in part (a) to estimate the top speed for the Svfara SV609.

c. Compute and interpret and R2 and R2a. 

d. Does the estimated regression equation provide a good fit to the data? Explain.

Reference no: EM13242126

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