1. A professor is interested in how attendance is related to grades her class. She goes through her records and determines each student’s final average and the number of days absent. The scores for...

1. A professor is interested in how attendance is related to grades her class. She goes through her records and determines each student’s final average and the number of days absent. The scores for her sample are given in the table below.

a. Construct a scatter plot of the relationship between final averages and the number of days absent.

b. Is there a significant relationship between final averages and the number of days absent? Calculate and interpret the correlation and report it in proper APA format.

c. Compute r²
for the data. What percent of the variability in final averages is accounted for by the number days absent?

Extracted text: Student Absent Average 80 66 85 Hours 14 2 3 3 2 86 73 97 2 18 3 17 88 76 62 10 94 92 11 12 88 6. 13 14 87 78 90 2 12 10 15 2 15