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A develop a scatter diagram with weight as the dependent

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Reference no: EM13575407

Automobile racing, high-performance driving schools, and driver education programs run by automobile clubs continue to grow in popularity. All these activities require the participant to wear a helmet that is certified by the Snell Memorial Foundation, a not-for-profit organization dedicated to research, education, testing, and development of helmet safety standards. Snell "SA" (Sports Application) rated professional helmets are designed for auto racing and provide extreme impact resistance and high fire protection. One of the key factors in selecting a helmet is weight, since lower weight helmets tend to place less stress on the neck. The following data show the weight and price for 18 SA helmets.

Helmet                                Weight(oz)       Price ($)
Pyrotect Pro Airflow                  64                  248
Protect Pro airflow Graphics        64                  278
Rci Full Face                            64                  200
RaceQuip RidgeLine                   64                  200
HJC AR-10                               58                  300
HJC Si-12                                47                  700
HJC HX-10                               49                  900
Impact Racing Super Sport         59                   340
Zamp FSA-1                             66                  199
Zamp RZ-2                              58                   299
Zamp RZ-2 Ferrari                     58                   299
Zamp RZ-3 Sport                      52                   479
Zamp RZ-3 Sport Painted            52                  479
Bell M2                                    63                   369
Bell M4                                    62                   369
Bell M4 Pro                               54                   559
G Force Pro Force 1                   63                   250
G Force Pro Force 1 Grafx           63                   280

A) Develop a scatter diagram with weight as the dependent variable.

B) Does there appear to be any relationship between these two variables?

C) Develop the estimated regression equation that could be used to predict the price given the weight.

D) Test for the significance of the relationship at the .05 level of significance.

E) Did the estimated regression equation provide a good fit? Explain.

Reference no: EM13575407

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