The regression equation relating putting distance (in feet) and success rate (%)
ID: 3170247 • Letter: T
Question
The regression equation relating putting distance (in feet) and success rate (%) for professional golfers, based pm the 11 distances ranging from 5 feet to 15 feet is : success rate =76.5-(3.95) (distance).
A) calculate the correlation coefficient and use it to interpret the relationship between putting distance and success rate. B)Would it be appropriate to predict success rate for a golfer who is putting a distance of 32 feet? explain why ? c) what does the coefficient of detmnation tell us about the predictive power of the regression line?
Explanation / Answer
Solution:
From excel we Calculated Correlation Coefficient which is -1
Which tells us that as we increase in 1 unit in Distance than Success rate will decrease by 1 unit or vice versa.
No it is not possible to predict success rate for a golfer who is puttin a distance of 32 feet, if we calcualte than success rate would go in minus which is not possible.
According to the excel i got regression table
We got that coefficient of determination is 1 which means there are only 1% variability defined by our regression model.
Distance Success Rate 5 56.75 6 52.8 7 48.85 8 44.9 9 40.95 10 37 11 33.05 12 29.1 13 25.15 14 21.2 15 17.25