question archive The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam
The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam
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The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. Write the equation for the best fit line. Determine if r is significant and if the line of best fit associated with r can be used to predict a y value. What is the best predicted value for y given x =3? Is there any outliers? Hours (x), scores (y)
3 65
5 80
2 60
8 88
2 66
4 78
4 85
5 90
6 90
3 71
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equation for the best fit line
y=56.1139+5.0443x
r is significant.
71.66% variations of y value are explained by the x variable, hence line of best fit associated with r can be used to predict a y value.
x=3, y = 71.2468
No outliers present in the data set
Please see the attached file for the complete solution
