A statistics professor wanted to know if there was a relationship between the midterm exam grade and the final exam grade of students. Data was obtained for 10 students: Midterm exam Student Final exam grade grade 1 74 2 73 3 71 4 80 5 83 6 85 7 90 8 94 9 97 99 10 100 98 A. Obtain the coefficient of correlation. Report to 3 decimal places. B. Obtain the slope of the regression line. Report to 3 decimal places. C. Calculate the error for a 99% confidence interval for the slope. Round all 3 values in the formula to 3 decimal places. Report the answer to 3 decimal places. D. Calculate the residual for x = 95. Use equation to 3 decimal places. Report answer to 3 decimal places. SFEER 65 68 71 75 75 85 88 95

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
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Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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Subparts A,B,C, and D. Please
A statistics professor wanted to know if there was a relationship between the midterm exam grade and the
final exam grade of students. Data was obtained for 10 students:
Student
Midterm exam
grade
Final exam grade
1
65
74
2
68
73
3
71
71
4
75
80
5
75
83
6
85
85
7
88
90
8
95
94
9
97
99
10
100
98
A. Obtain the coefficient of correlation. Report to 3 decimal places.
B. Obtain the slope of the regression line. Report to 3 decimal places.
C. Calculate the error for a 99% confidence interval for the slope. Round all 3 values in the formula to 3
decimal places. Report the answer to 3 decimal places.
D. Calculate the residual for x = 95. Use equation to 3 decimal places. Report answer to 3 decimal places.
Transcribed Image Text:A statistics professor wanted to know if there was a relationship between the midterm exam grade and the final exam grade of students. Data was obtained for 10 students: Student Midterm exam grade Final exam grade 1 65 74 2 68 73 3 71 71 4 75 80 5 75 83 6 85 85 7 88 90 8 95 94 9 97 99 10 100 98 A. Obtain the coefficient of correlation. Report to 3 decimal places. B. Obtain the slope of the regression line. Report to 3 decimal places. C. Calculate the error for a 99% confidence interval for the slope. Round all 3 values in the formula to 3 decimal places. Report the answer to 3 decimal places. D. Calculate the residual for x = 95. Use equation to 3 decimal places. Report answer to 3 decimal places.
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