what is the rejection region for . The records of 12 college students were obtai
ID: 3397303 • Letter: W
Question
what is the rejection region for
. The records of 12 college students were obtained in a random sample, and each student’s GPA(y) and ACT(x) were recorded as follows.
ACT
GPA
24
2.66
20
2.25
23
2.82
27
2.91
31
3.45
29
3.47
28
3.75
26
3.33
31
4.00
26
3.49
20
2.61
18
1.80
a. Construct scatterplot
b. Calculate Pearson correlation coefficient.
c. Determine the equation for the least squares line that can be used for predicting GPA from ACT score.
d. Calculate R2 and interpret!
e. Conduct test of H0: B1 = 0 vs Ha: B1 0 at a=.05.
f. Construct a 95% confidence interval for the mean GPA for students who have an ACT score of 25.
ACT
GPA
24
2.66
20
2.25
23
2.82
27
2.91
31
3.45
29
3.47
28
3.75
26
3.33
31
4.00
26
3.49
20
2.61
18
1.80
Explanation / Answer
what is the rejection region for . The records of 12 college students were obtai
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