Homework Help is Here – Start Your Trial Now!
Math
Statistics
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
See similar textbooks
icon
Related questions
Question

see attachment

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
Expert Solution
Step 1

*Answer: 

From the given information, the number of observations is 30.

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS