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2.282 Ex 1.234 - 0.051 al -1.699 0.025 ail vel 2.045 95% -2 -1 t= Ex: 1.234

2.282 Ex 1.234 - 0.051 al -1.699 0.025 ail vel 2.045 95% -2 -1 t= Ex: 1.234

MATLAB: An Introduction with Applications
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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A company would like to know if efficiency can be improved through a training course for employees. A sample of employees is taken. The time taken for an employee to complete a task before training and after training is observed. Before After Mean 33.1 31.7 Variance 16.81 12.25 Observations 30 30 Hypothesized Mean Difference df 29 t Stat -2.282 p= Ex: 1.234 : 0.051 P(Tent) one-tail t Critical one-tail P(Tent) two-tail t Critical two-tail -1.699 0.025 -2.045 Confidence Level 95% -3 -2 t = Ex: 1.234 n = Ex: 9
Transcribed Image Text:A company would like to know if efficiency can be improved through a training course for employees. A sample of employees is taken. The time taken for an employee to complete a task before training and after training is observed. Before After Mean 33.1 31.7 Variance 16.81 12.25 Observations 30 30 Hypothesized Mean Difference df 29 t Stat -2.282 p= Ex: 1.234 : 0.051 P(Tent) one-tail t Critical one-tail P(Tent) two-tail t Critical two-tail -1.699 0.025 -2.045 Confidence Level 95% -3 -2 t = Ex: 1.234 n = Ex: 9
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From the given information, the number of observations is 30.

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