A study was conducted to detemine whether a the final grade of a student in an introductory psychology course is linearly related to his or her performance on the verbal ability test administered before college entrance. The verbal scores and final grades for 10 students are shown in the table pelow. Student Verbal Score x Final Grade y 1 39 47 2. 60 69 3. 65 75 4. 51 61 55 65 6. 56 70 61 73 8 76 89 9. 65 82 10 72 82 Find the least squares line. 4.7320 1.1095 Shouid the regression be used to predict the final grade of a student with a verbal score of 100? answer: 115.6
A study was conducted to detemine whether a the final grade of a student in an introductory psychology course is linearly related to his or her performance on the verbal ability test administered before college entrance. The verbal scores and final grades for 10 students are shown in the table pelow. Student Verbal Score x Final Grade y 1 39 47 2. 60 69 3. 65 75 4. 51 61 55 65 6. 56 70 61 73 8 76 89 9. 65 82 10 72 82 Find the least squares line. 4.7320 1.1095 Shouid the regression be used to predict the final grade of a student with a verbal score of 100? answer: 115.6
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.2: Box-and-whisker Plots
Problem 1E
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Just need help with the last part as my answer is wrong. 115.6329 is also not right.
Transcribed Image Text:A study was conducted to detemine whether a the final grade of a student in an introductory psychology course is linearly related to his or her
performance on the verbal ability test administered before college entrance. The verbal scores and final grades for 10 students are shown in the table
below.
Student Verbal Score x Final Grade y
1
39
47
60
69
3
65
75
4.
51
61
55
65
6.
56
70
61
73
8.
76
89
65
82
10
72
82
Find the least squares line.
ý =
4.7320
+
1.1095
Shouid the regression be used to predict the final grade of a student with a verbal score of 100?
answer:
115.6
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