Question
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 20 students in a beginning computer-science course. The results were as follows.
| x | 3 | 17 | 19 | 14 | 21 | 20 | 14 | 19 | 18 | 15 | 17 | 16 | 9 | 7 | 4 | 21 | 19 | 10 | 20 | 13 |
| y | 19 | 19 | 24 | 36 | 27 | 26 | 25 | 28 | 17 | 27 | 21 | 24 | 18 | 18 | 14 | 28 | 21 | 22 | 20 | 21 |
(a) Find the equation of the line of best fit. (Round your slope
to four decimal places and your y-intercept to three
decimal places.)
= + x
(b) Find se2. (Round your answer to
two decimal places.)
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the achievement
score, y (measured by a comprehensive final), were measured for 20
students in a beginning computer-science course. The results were
as follows. x 5 17 21 12 21 20 14 21 18 17 19 16 9 7 6 21 17 10 18
15 y 19 19 24 36 27 26 25 28 17 27 21 24 18 18 14 28 21 22 20 21
(a) Find the equation of the line of...
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the
achievement score, y (measured by a comprehensive final),
were measured for 20 students in a beginning computer-science
course. The results were as follows.
x
5
15
21
12
23
22
14
19
18
17
19
18
7
5
6
21
19
10
18
13
y
19
19
24
36
27
26
25
28
17
27
21
24
18
18
14
28
21
22
20
21
(a) Find the equation of the line of...
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the achievement
score, y (measured by a comprehensive final), were measured for 10
students in a beginning computer-science course. The results were
as follows. Calculate the estimated standard error of regression,
sb1. (Give your answer correct to two decimal places.) x 4 16 20 13
22 21 15 20 19 16 y 20 20 25 37 28 25 26 27 18 28
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the
achievement score, y (measured by a comprehensive final),
were measured for 10 students in a beginning computer-science
course. The results were as follows. Calculate the estimated
standard error of regression, sb1.
(Give your answer correct to two decimal places.)
x
4
16
20
13
22
21
15
20
19
16
y
18
20
23
37
26
25
24
27
18
26
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the
achievement score, y (measured by a comprehensive final),
were measured for 10 students in a beginning computer-science
course. The results were as follows. Calculate the estimated
standard error of regression, sb1.
(Give your answer correct to two decimal
places.)
x
22
19
7
11
5
22
18
15
8
11
y
27
21
35
35
19
19
16
29
15
28
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the
achievement score, y (measured by a comprehensive final),
were measured for 10 students in a beginning computer-science
course. The results were as follows. Calculate the estimated
standard error of regression, sb1.
(Give your answer correct to two decimal places.)
x
4
16
20
13
22
21
15
20
19
16
y
18
18
23
35
28
27
26
29
16
26
You may need to use the appropriate table in Appendix B to...
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were...
The computer-science aptitude score, x, and the achievement
score, y (measured by a comprehensive final), were measured for 10
students in a beginning computer-science course. The results were
as follows. Calculate the estimated standard error of regression,
sb1. (Give your answer correct to two decimal places.) x 22 13 9 10
17 21 7 15 6 14 y 34 35 33 15 23 29 26 24 24 30
The accompanying data represent the number of days absent, x, and the final exam score, y,...
The accompanying data represent the number of days absent, x,
and the final exam score, y, for a sample of college students in a
general education course at a large state university. Complete
parts (a) through (e) below.
LOADING...
No. of
absences, x
0
1
2
3
4
5
6
7
8
9
Final
exam score, y
88.9
86.4
83.7
81.5
78.9
73.2
63.7
71.8
65.1
66.8
PrintDone
Click the icon to view the absence count and final exam score...
Person number X Value Y Value Person number X Value Y Value Person number X Value...
Person
number
X
Value
Y
Value
Person number
X
Value
Y
Value
Person number
X
Value
Y
Value
1
24
30
11
39
42
21
21
27
2
42
53
12
60
65
22
33
29
3
20
27
13
34
40
23
25
27
4
31
30
14
24
26
24
22
25
5
22
24
15
51
57
25
28
33
6
46
47
16
80
83
26
34
40
7
52
60
17
28
27
27
53...
The SAT and the ACT are the two major standardized tests that colleges use to evaluate...
The SAT and the ACT are the two major standardized tests that
colleges use to evaluate candidates. Most students take just one of
these tests. However, some students take both. The data data141.dat
gives the scores of 60 students who did this. How can we relate the
two tests? (a) Plot the data with SAT on the x axis and ACT on the
y axis. Describe the overall pattern and any unusual observations.
(b) Find the least-squares regression line and...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 10 minutes ago
asked 14 minutes ago
asked 17 minutes ago
asked 20 minutes ago
asked 24 minutes ago
asked 33 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago