Pearson product-moment correlation coefficient (r)

In a College Life Questionnaire, college students reported their GPA and estimated the number of hours they studied each week. A college administrator is interested in determining if there exists a relationship between the GPA and hours studied.

Data from a random sample (U = 15) of GPA and estimated hours of study per week are reported below.

QUESTION:

1. Compute and get the answers using the correct formulas for the variables listed below r, =

r²=,

k² .=

2. What is the interpretation of these statistics?

GPA	Hours of Study
2.3	18
2.2	10
3.9	16
2.7	13
2.5	10
3.7	07
3.1	11
3.3	15
3.4	10
3.6	10
3.0	15
3.2	30
2.9	10
1.7	21
3.1	15