Answered: The director of admissions at Pentagon… | bartleby

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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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.

e)
Find and interpret a 90% interval estimate of the mean freshman GPA when the entrance
test score is five.

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