Can hair length be used to predict the height of a person? Totry to answer this, the following random subset of data werecollected from our class’s data:
Hair length: Â Â Â Â Â 8Â Â Â Â Â Â Â 12Â Â Â Â Â Â Â 18Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
                      Â
Height:Â Â Â Â Â Â Â Â Â Â 68Â Â Â Â Â 60Â Â Â Â Â Â Â 61Â Â Â Â Â Â Â 67Â Â Â Â Â Â Â 67Â Â Â Â Â Â Â 70Â Â Â Â Â Â Â 68Â Â Â Â Â Â Â 70
- Is there a significant correlation between hair length andheight? Use α=.05.
- Calculate the coefficient of determination. What does thisvalue say about the relationship between hair length andheight?
- What would you expect the height to be of a person with 4inches of hair?
- Create a 90% prediction interval for the height of a personwith 4 inches of hair.
