SOLUTION: A graduate teaching assistant for an Introduction to Statistics course collected data from one of her classes to investigate the relationship between using the explanatory variable

Question 1046958: A graduate teaching assistant for an Introduction to Statistics course collected data from one of her classes to investigate the relationship between using the explanatory variable xequals=study time per week (average number of hours) to predict the response variable yequals=college GPA. For the 21 females in her class, the correlation was 0.42. For the eight males in her class, the data were as shown in the following table. Complete parts a through c below.
Student
1
2
3
4
5
6
7
8

Study Time
1414
1111
2424
1111
1313
2121
55
44
GPA
3.43.4
3.13.1
3.63.6
3.33.3
2.82.8
3.93.9
2.92.9
2.62.6
a. Construct a scatterplot. Interpret.
Which scatterplot below correctly shows the data?
A.
0
40
0
4
x
y
x y graph
B.
0
40
0
4
x
y
x y graph
Your answer is correct.C.
0
40
0
4
x
y
x y graph
D.
0
40
0
4
x
y
x y graph
The scatterplot shows
a strong positive
association between the two variables.
b. Find and interpret the correlation.
The correlation is?
(Round to two decimal places as needed.)
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

Data makes no sense: repost
1414
1111
2424
1111
1313
2121
55
44
GPA
3.43.4
3.13.1
3.63.6
3.33.3
2.82.8
3.93.9
2.92.9
2.62.6
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