Question
The director of graduate admissions at a university wishes to determine whether there is a relationship between scores on the Graduate Record Examination (GRE) and
The director of graduate admissions at a university wishes to determine whether there is a relationship between scores on the Graduate Record Examination (GRE) and subsequent performance in the program as measured by GPA. She takes a sample of 10 students who graduated within the past three years.
GRE Score GPA
1500 3.4
1400 3.5
1000 3.0
1050 2.9
1100 3.0
1250 3.3
800 2.7
850 2.8
950 3.2
1350 3.3
- Calculate and interpret the covariance
- Calculate and interpret the correlation coefficient. Does the applicant's GRE score seem to be a good indicator of subsequent performance in graduate school?
- Is the relationship statistically significant at the 05 significance level?
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Algebra and Trigonometry
Authors: Ron Larson
10th edition
9781337514255, 1337271179, 133751425X, 978-1337271172
