A corporation administers an aptitude test to all new sales representatives. Management is interested in the extent to which this test is able to predict weekly sales of new representatives. Aptitude test scores range from 0 to 30 with greater scores indicating a higher aptitude. Weekly sales are recorded in hundreds of dollars for a random sample of 10 representatives. Test scores and weekly sales are as follows:Test Score, x 12 30 15 24 14 18 28 26 19 27Weekly Sales, y 20 60 27 50 21 30 61 54 32 57a. Compute the covariance between test score and weekly sales.b. Compute the correlation between test score and weekly sales.
A corporation administers an aptitude test to all new sales representatives. Management is interested in the extent to which this test is able to predict weekly sales of new representatives. Aptitude test scores range from 0 to 30 with greater scores indicating a higher aptitude. Weekly sales are recorded in hundreds of dollars for a random sample of 10 representatives. Test scores and weekly sales are as follows:Test Score, x 12 30 15 24 14 18 28 26 19 27Weekly Sales, y 20 60 27 50 21 30 61 54 32 57a. Compute the covariance between test score and weekly sales.b. Compute the correlation between test score and weekly sales.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A corporation administers an aptitude test to all new sales representatives. Management is interested in the extent to which this test is able to predict weekly sales of new representatives. Aptitude test scores
Test Score, x 12 30 15 24 14 18 28 26 19 27
Weekly Sales, y 20 60 27 50 21 30 61 54 32 57
a. Compute the
b. Compute the
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