A sample of 25 blue-collar employees at a production plant was taken. Each employeewas asked to assess his/her own job satisfaction (x) on a scale of 1 to 10. In addition,the numbers of days absent (y) from work during the last year were found for theseemployees. The data is given below:X 786| 65 4 22 8 3 5 5 67 8 9 8 76 65 8910 9101y 3145 5 69.3 96 4 3 21 4 55 30a) Estimate the linear regression of the numbers of days absent on job satisfaction.Interpret your results.b) Test the significance of the slope of the population regression line at 10%significance level. Interpret your results.c) Find and interpret the coefficient of determination.

Given: X Y 7 3 8 1 6 4 6 5 5 5 4 6 2 9 10 0 1 10 2 9 8 3 3 9 5 5 5 6…

A sample of 25 blue-collar employees at a production plant was taken. Each employee was asked to assess his/her own job satisfaction (x) on a scale of 1 to 10. In addition, the numbers of days absent (y) from work during the last year were found for these employees. The data is given below: 786 6 5 42 10 y 314 5569 a) Estimate the linear regression of the numbers of days absent on job satisfaction. Interpret your results. b) Test the significance of the slope of the population regression line at 10% significance level. Interpret your results. c) Find and interpret the coefficient of determination. 2 8 35 567 8 9 8 76 65 89 10 9 3 9 56 4 3 2 1 1 1455 530

A sample of 25 blue-collar employees at a production plant was taken. Each employee was asked to assess his/her own job satisfaction (x) on a scale of 1 to 10. In addition, the numbers of days absent (y) from work during the last year were found for these employees. The data is given below: 786 6 5 42 10 y 314 5569 a) Estimate the linear regression of the numbers of days absent on job satisfaction. Interpret your results. b) Test the significance of the slope of the population regression line at 10% significance level. Interpret your results. c) Find and interpret the coefficient of determination. 2 8 35 567 8 9 8 76 65 89 10 9 3 9 56 4 3 2 1 1 1455 530

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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