Question

Using the accompanying Student Grades​ data, construct a scatter chart for midterm versus final exam grades...

Using the accompanying Student Grades​ data, construct a scatter chart for midterm versus final exam grades and add a linear trendline. What is the​ model? If a student scores 7878 on the​ midterm, what would you predict her grade on the final exam to​ be?

Student Midterm Final Exam
1 75 64
2 85 91
3 80 68
4 88 83
5 76 60
6 67 80
7 78 74
8 95 94
9 67 61
10 93 87
11 79 53
12 86 82
13 87 56
14 62 73
15 93 86
16 75 90
17 68 81
18 91 93
19 79 79
20 61 70
21 69 83
22 70 73
23 60 75
24 69 55
25 75 93
26 73 78
27 100 90
28 57 53
29 83 77
30 72 82
31 78 70
32 96 98
33 71 93
34 72 81
35 71 81
36 95 96
37 72 62
38 89 83
39 93 96
40 86 90
41 60 73
42 65 92
43 96 84
44 82 86
45 89 99
46 92 96
47 79 92
48 86 94
49 90 78
50 74 81
51 96 99
52 80 73
53 61 79
54 69 75
55 86 91
56 88 96


What is the model for the​ trendline?

Final Exam Grade= ?+?×Midterm Grade

If a student scores 78 on the​ midterm, her predicted final exam grade would be?

Homework Answers

Answer #1

From the given data, scatter plot of midterm grades vs final term grades is as follows-

From the above scatter plot, regression model obtained is simple regression model as there is only one regressor. Model for trendline is y = 0.5973x + 33.51 i.e. Final grades = 0.5973x(Midterm grades) + 33.51.

Now, we have to predict final exam grades, if student scores 7878 on the midterm -

Hence, from the above equation -

Final grades = 0.5973x(Midterm grades) + 33.51

= 0.5973*7878 + 33.51

= 4739.039

4739.039 will be the final score if student scored 7878 at midterm.

If student scores 78 on the mid term then final score will be -

Final grades = 0.5973x(Midterm grades) + 33.51

= 0.5973*78 + 33.51

= 80.0994

80.0994 will be the final score if student scored 78 at midterm.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Student Grades Student Test Grade 1 76 62 2 84 90 3 79 68 4 88...
Student Grades Student Test Grade 1 76 62 2 84 90 3 79 68 4 88 84 5 76 58 6 66 79 7 75 73 8 94 93 9 66 65 10 92 86 11 80 53 12 87 83 13 86 49 14 63 72 15 92 87 16 75 89 17 69 81 18 92 94 19 79 78 20 60 71 21 68 84 22 71 74 23 61 74 24 68 54 25 76 97...
The Test Scores for a Statistics course are given in the Excel below. The data (X1,...
The Test Scores for a Statistics course are given in the Excel below. The data (X1, X2, X3, X4) are for each student. X1 = score on exam #1 X2 = score on exam #2 X3 = score on exam #3 X4 = score on final exam Your professor wants to know if all tests are created equal. What is the F-Stat? EXAM1 EXAM2 EXAM3 FINAL 73 80 75 65.86667 93 88 93 80.16667 89 91 90 78 96 98...
Below represent scores on an exam, each entry one score for one student 40 99 59...
Below represent scores on an exam, each entry one score for one student 40 99 59 98 63 63 64 65 67 35 67 67 68 70 71 71 71 46 72 72 60 73 74 74 74 75 97 75 62 76 76 76 76 76 77 57 77 98 77 63 78 78 78 79 79 80 80 80 80 80 81 81 92 81 93 82 82 83 83 83 83 83 83 83 84 84 84...
The following scores on the midterm exam in a math class were recorded. Find IQR. 93...
The following scores on the midterm exam in a math class were recorded. Find IQR. 93 81 59 69 82 73 61 77 95 84 88 71 85 97 63 72 89 80 60 98 91 62 78 83 76 81 94 66 83 96
Mid Score Final Score 80 78 87 85 72 81 69 54 86 70 83 73...
Mid Score Final Score 80 78 87 85 72 81 69 54 86 70 83 73 78 89 75 84 74 86 75 79 84 75 73 63 74 72 73 69 80 86 75 78 72 75 77 68 76 77 66 78 74 77 71 73 85 79 74 74 76 79 76 73 84 72 77 81 78 86 86 76 81 83 78 83 85 86 73 71 83 83 83 79 72 68 83 90...
TestScore 53 53 56 56 56 58 58 58 59 59 59 60 60 62 63...
TestScore 53 53 56 56 56 58 58 58 59 59 59 60 60 62 63 63 63 64 65 65 66 67 67 67 67 68 69 69 69 69 71 71 72 72 72 72 73 73 73 73 73 74 75 75 75 76 76 76 76 77 77 77 77 77 78 78 78 79 79 79 79 80 80 80 80 80 80 81 81 81 82 82 83 83 83 83 84 84 84...
Daughter's Performance on a Stanardized Math Test Mother's Performance on a Stanardized Math Test Father's Performance...
Daughter's Performance on a Stanardized Math Test Mother's Performance on a Stanardized Math Test Father's Performance on a Stanardized Math Test 84 90 72 65 70 85 91 86 81 75 82 83 81 84 84 79 93 72 83 72 70 92 90 88 61 74 68 73 60 82 85 83 72 90 93 94 54 64 69 70 78 62 Daughter -Mother Correlation: Instructions: Indicate the correlation between daughters and mothers' scores on the standardized math test...
The data file ExxamScores shows the 40 students in a TOM 3010 course exxam scores for...
The data file ExxamScores shows the 40 students in a TOM 3010 course exxam scores for the Middtermm and Final exxam. Is there statistically significant evidence to show that students score lower on their final exxam than middtermm exxam? Provide the p-value for this analysis.ROUND TO 4 DECIMAL PLACES. ExxamScores Student ID # Middtermmm Final 56065 97 64 79499 95 85 59716 89 72 83504 79 64 77735 78 74 57760 87 93 78204 83 70 81177 94 79 54398...
Use ? to approximate σ. Use a 5% level of significance. Data: 69 62 75 66...
Use ? to approximate σ. Use a 5% level of significance. Data: 69 62 75 66 68 57 61 84 61 77 62 71 68 69 79 76 87 78 73 89 81 73 64 65 73 69 57 79 78 80 79 81 73 74 84 83 82 85 86 77 72 79 59 64 65 82 64 70 83 89 69 73 84 76 79 81 80 74 77 66 68 77 79 78 77
3. Given the data in problem 2, if a student received a score of 80 on...
3. Given the data in problem 2, if a student received a score of 80 on the midtest, what would be the best prediction for the grade on the lasttest? Please compute a line of best fit and predict what the final grade should be. Question 2 data : Midtest 85      90     72     75     82     95     80      83     81     95 Last test 83      91    75     85     65     92      83      86    79     98
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT