Calculate and interpret the spearman rank

Assignment Help Basic Statistics

Reference no: EM131798027

The director of graduate admissions at a local university is analyzing the relationship between scores on the Graduate Record Examination (GRE) and subsequent performance in graduate school, as measured by a student's grade point average (GPA). She uses a sample of 7 students who graduated with in the past five years. The data are in the accompanying table and on the text website, labeled GRE/GPA.

118_scores on the Graduate Record Examination.png

a. Calculate and interpret the Spearman rank correlation coefficient rs.

b. Specify the competing hypotheses in order to determine whether GRE and GPA are positively related.

c. At the 5% significance level, specify the critical value and the decision rule.

d. Are GRE and GPA positively related? Explain.

Reference no: EM131798027

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