Question

In: Statistics and Probability

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 70 on the​ midterm, what would you predict her grade on the final exam to​ be?

Student

Midterm

Final Exam

1

7575

6464

2

8585

9090

3

8080

6969

4

8989

8484

5

7676

6161

6

6666

7878

7

7878

7272

8

9494

9494

9

6767

5959

10

9393

8686

11

7979

5353

12

8787

8484

13

8686

5555

14

6262

7373

15

9191

8686

16

7575

8888

17

6969

8181

18

9393

9595

19

7979

7878

20

6161

7070

21

6969

8383

22

7272

7373

23

6262

7474

24

6969

5555

25

7575

9494

26

7171

7878

27

9898

8989

28

5959

5353

29

8383

7777

30

7171

8181

31

7676

6969

32

9595

9797

33

7373

9292

34

7171

8080

35

7373

8282

36

9696

9595

37

7171

6262

38

9090

8383

39

9595

9696

40

8484

8888

41

6161

7373

42

6565

9393

43

9595

8383

44

8282

8888

45

8888

100100

46

9393

9696

47

7777

9191

48

8686

9393

49

9191

7878

50

7575

8383

51

9696

100100

52

7979

7272

53

6161

7878

54

6969

7676

55

8686

9191

56

8989

9494

Student

Midterm

Final Exam

Solutions

Expert Solution



Related Solutions

Using python code Developed a program to get students homework, midterm, and final exam grades and...
Using python code Developed a program to get students homework, midterm, and final exam grades and compute their average grades display average grade as a number and give them letter gardes. For this homework, I would like you to modify your to do the following. Student grades MUST be between 0 and 100. If students input any number that is not in this range , program must keep asking to enter the correct number. Once student input correct grade, program...
1. The following lists midterm and final exam grades for randomly selected students: Midterm (x) 82...
1. The following lists midterm and final exam grades for randomly selected students: Midterm (x) 82 65 93 70 85 50 95 80 Final (y) 94 77 94 79 95 70 97 91 a). Plot the scatter diagram. b). find the value of the linear correlation coefficient r. c). find the equation of the regression line that best fits the data. d). If you received a 76 on the midterm, what grade could you expect on the final? e). If...
An investigator collected data on midterm exam scores and final exam scores of elementary school students;...
An investigator collected data on midterm exam scores and final exam scores of elementary school students; results can summarized as follows. Average SD -------------------------------------------------- Boys' midterm score 70 20 Boys' final score 65 23 girls' midterm score 75 20 girls' final score 80 23 The correlation coefficient between midterm score and final score for the boys was about 0.70; for the girls, it was about the same. If you take the boys and the girls together, the correlation between midterm...
An instructor grades exams, 20%; term paper, 30%; final exam, 50%. A student had grades of...
An instructor grades exams, 20%; term paper, 30%; final exam, 50%. A student had grades of 83, 72, and 90, respectively, for exams, term paper, and final exam. Find the student’s final average. Use the weighted mean. Stories in the Tallest Buildings The number of stories in the 13 tallest buildings for two different cities is listed below. Which set of data is more variable? Houston: 75, 71, 64, 56, 53, 55, 47, 55, 52, 50, 50, 50, 47 Pittsburgh:...
The following are the midterm exam grades (in %) of a simple random sample of 39...
The following are the midterm exam grades (in %) of a simple random sample of 39 statistical students: 85 64 45 77 53 72 99 59 68 92 48 75 51 93 67 78 89 56 83 71 49 94 63 77 79 88 42 65 92 69 73 56 81 69 61 75 58 67 81 a). make a 75% confidence statement about the mean grade of all statistical students on a similar midterm b). what is the sample...
What is the percentage of shared variance between the midterm and final grades in the table...
What is the percentage of shared variance between the midterm and final grades in the table below? Midterm Final 55 100 60 80 78 92 79 95 80 90 55 90 64 40 89 75 90 70 92 82 94 70 100 100 13% 17% 25% Less than 1%
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. Click the icon to view the absence count and final exam score data. Absences and Final Exam Scores No. of absences, x 0 1 2 3 4 5 6 7 8 9 Final exam score, y 88.3 87.3 84.2 80.9 77.6 73.8...
An instructor hypothesizes that the variance of the final exam grades in her statistics class is...
An instructor hypothesizes that the variance of the final exam grades in her statistics class is larger for male students than it is for female students. The data from the final exam for the last semester are as shown. Is there enough evidence to support her claim, using a .01 level of significance?    Males females n1=16 s1-4.2 n2=18 s2=2.3 claim ………………………………................ ________________________ null hypothesis…………………………………. ________________________ alternative hypothesis………………………….. ________________________ Calculator Screen Name……………………… ________________________ test statistic ………………………… ________________________ pvalue/alpha comparison………………………. ________________________...
For the accompanying data​ set, (a) draw a scatter diagram of the​ data, (b) by​ hand,...
For the accompanying data​ set, (a) draw a scatter diagram of the​ data, (b) by​ hand, compute the correlation​ coefficient, and​ (c) determine whether there is a linear relation between x and y. n 3 0.997 4 0.950 5 0.878 6 0.811 7 0.754 8 0.707 9 0.666 10 0.632 11 0.602 12 0.576 13 0.553 14 0.532 15 0.514 16 0.497 17 0.482 18 0.468 19 0.456 20 0.444 21 0.433 22 0.423 23 0.413 24 0.404 25 0.396...
For the accompanying data​ set, (a) draw a scatter diagram of the​ data, (b) by​ hand,...
For the accompanying data​ set, (a) draw a scatter diagram of the​ data, (b) by​ hand, compute the correlation​ coefficient, and​ (c) determine whether there is a linear relation between x and y. x 2 4 6 6 7 y 4 8 11 13 18 n 3 0.997 4 0.950 5 0.878 6 0.811 7 0.754 8 0.707 9 0.666 10 0.632 11 0.602 12 0.576 13 0.553 14 0.532 15 0.514 16 0.497 17 0.482 18 0.468 19 0.456...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT