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The director of admissions at Pentagon College administered a newly designed entrance test to 20 students selected at random for the new freshman class in a study to determine whether a student's grade point average (GPA) of the end of freshman year can be predicted from the entrance test score. The results of the study are as follows: ΣX; = 100, EX₁² = 509.12, SSE = 3.41 and Y₁ = -1.70 +0.48X₁.

The director of admissions at Pentagon College administered a newly designed entrance test to 20 students selected at random for the new freshman class in a study to determine whether a student's grade point average (GPA) of the end of freshman year can be predicted from the entrance test score. The results of the study are as follows: ΣX; = 100, EX₁² = 509.12, SSE = 3.41 and Y₁ = -1.70 +0.48X₁.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The director of admissions at Pentagon College administered a newly designed entrance test to 20 students selected at random for the new freshman class in a study to determine whether a student's grade point average (GPA) of the end of freshman year can be predicted from the entrance test score. The results of the study are as follows: ΣX; = 100, X² = 509.12, SSE = 3.41 and Y = -1.70+ 0.48X₁.
Transcribed Image Text:The director of admissions at Pentagon College administered a newly designed entrance test to 20 students selected at random for the new freshman class in a study to determine whether a student's grade point average (GPA) of the end of freshman year can be predicted from the entrance test score. The results of the study are as follows: ΣX; = 100, X² = 509.12, SSE = 3.41 and Y = -1.70+ 0.48X₁.
e) Find and interpret a 90% interval estimate of the mean freshman GPA when the entrance test score is five.
Transcribed Image Text:e) Find and interpret a 90% interval estimate of the mean freshman GPA when the entrance test score is five.
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