The examiner of a course in applied statistics is interested in improving assessment instru- ments used to test knowledge and skills in the course. One aspect of this is to investigate the relationship between the performance in the first assignment for the course with per- formance in the second assignment. Data collected on these variables from a random sample of 12 students is given below: Student Assignment 1 Mark Assignment 2 Mark 1 2 3 4 5 6 7 8 9 10 11 12 80 73 89 75 90 92 83 83 93 73 78 96 68 85 71 95 (a) Find the value of the Spearman's rank correlation coefficient, rg between the ranks Assignment 1 and Assignment 2 Marks.

The examiner of a course in applied statistics is interested in improving assessment instru- ments used to test knowledge and skills in the course. One aspect of this is to investigate the relationship between the performance in the first assignment for the course with per- formance in the second assignment. Data collected on these variables from a random sample of 12 students is given below: Student Assignment 1 Mark Assignment 2 Mark 1 2 3 4 5 6 7 8 9 10 11 12 80 73 89 75 90 92 83 83 93 73 78 96 68 85 71 95 (a) Find the value of the Spearman's rank correlation coefficient, rg between the ranks Assignment 1 and Assignment 2 Marks.

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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