samplequiz3

# samplequiz3 - Stat 119 Quiz 3A Name Red id Use the...

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Stat 119 Quiz 3A Name: ______________________ Red id: ______________________ Use the following information to answer problems 1-4 The regression equation relating putting distance (in feet) and success rate (percent) for professional golfers, based on the 11 distances ranging from 5 feet to 15 feet, is: Success rate = 76.5 – (3.95)(distance) The percent of variability in success rate explained by the regression of success rate on putting distance is 88.36%. 5. (2 point) Identify and interpret the slope of the line. 6. (4 points) One professional golfer can putt the ball a distance of 12 feet and has a success rate of 28%. a) Calculate the predicted success rate for a golfer who putts the ball a distance of 12 feet. b) Calculate the residual for this model value. 7. (2 points) Calculate the correlation coefficient and use it to interpret the relationship between putting distance and success rate Correlation coefficient: Interpretation 8. (2 points) Would it be appropriate to predict success rate for a golfer who is putting a distance of 32 feet? Explain why or why not in a full sentence.

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