Introductory Statistics
3rd Edition
ISBN: 9780135188927
Author: Gould, Robert, Ryan, Colleen N. (colleen Nooter)
Publisher: Pearson,
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Textbook Question
Chapter 6, Problem 49SE
Medical School MCAT Scores on the 2017 MCAT, an exam required for all medical school applicants, were approximately Normal with a
a. Suppose an applicant had an MCAT score of 520. What percentile corresponds with this score?
b. Suppose to be considered at a highly selective medical school an applicant should score in the top 10% of all test takers. What score would place an applicant in the top 10%?
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9.2 Testing the Mean mu:
Problem 3
(1 point)
Test the claim that the population of sophomore college
students has a mean grade point average greater than 2.2.
Sample statistics include n = 71, x = 2.44, and s = 0.9.
Use a significance level of a = 0.01.
The test statistic is
The P-Value is between :
The final conclusion is
< P-value <
A. There is sufficient evidence to support the claim that
the mean grade point average is greater than 2.2.
○ B. There is not sufficient evidence to support the claim
that the mean grade point average is greater than 2.2.
Note: You can earn partial credit on this problem.
Note: You are in the Reduced Scoring Period. All work counts for
50% of the original.
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Chapter 6 Solutions
Introductory Statistics
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