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...

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 non-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 (in oz), since lower weight helmets tend to place less stress on the neck. The data is in the fileRaceHelmets.

a. Interpret the slope coefficient. ( is the linear relationship positive or negative )

b.Test for a significant relationship. Use α = 0.05. (PLEASE USE P-VALUE APPROACH STATING THE NULL AND ALTERNATIVE HYPOTHESIS)

fileRaceHelmets.

Weight

64  64  64  64

58  47  49  59

66  58  58   52

52  63  62   54

63 63

Price

248  278  200  200

300  700  900  340

199  299  299  479

479  369  369  559

250  280