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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.

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.

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 33.1 31.7 Mean Variance 16.81 12.25 Observations 30 30 Hypothesized Mean Difference 29 t Stat -2.282 P(Tent) one-tail t Critical one tail 0.051 1234 E 1.699 0.025 P(Tcat) two-tail t Critical two-tail Confidence Level -2.045 95% - -1 Degrees of freedom: df = Point estimate for before training: ¤1 = Ex: 1.234 Point estimate for after training: ¤2 =
Transcribed Image Text:Before After 33.1 31.7 Mean Variance 16.81 12.25 Observations 30 30 Hypothesized Mean Difference 29 t Stat -2.282 P(Tent) one-tail t Critical one tail 0.051 1234 E 1.699 0.025 P(Tcat) two-tail t Critical two-tail Confidence Level -2.045 95% - -1 Degrees of freedom: df = Point estimate for before training: ¤1 = Ex: 1.234 Point estimate for after training: ¤2 =
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