Question

You are interested in examining the relationship between students’ number of absences per year and their GPA. You have sampled 20 seventh-grade students from Carson Middle School in Indiana. You hypothesize that as number of absences per year increases, GPA will decrease.

You collected the following data:

Student	Number of Absences per Year	GPA
1	7	1.95
2	7	2.00
3	6	1.93
4	4	2.50
5	5	2.45
6	5	2.35
7	5	2.37
8	5	2.41
9	6	1.94
10	4	2.55
11	3	3.00
12	1	3.70
13	1	3.80
14	2	3.75
15	2	3.78
16	3	3.62
17	3	3.64
18	3	3.69
19	2	3.80
20	2	3.71

State the hypotheses in both symbols and words. 1 pt

H0 (symbols):

H0 (words)

H1 (symbols):

H1 (words):

Answer 1

Ans:

Hypothesis testing for correlation coefficient.

We are interested in testing if there is negative association between number of absences per year and GPA.

So,

H₀:There is no correlation or positive correlation between number of absences per year and GPA.

H1:There is negative correlation between number of absences per year and GPA.