Justin started working on the sales force of ECE Calls Inc. On average, she closes the contract if 108 USD in 16 sales calls with a standard deviation of 12 USD. Test that the population mean is at least 100 USD against the alternative that is less than 100 USD. The level of significance is 5%. However, in the ECE Calls Inc., it is required that they must exceed an average of 100 per contract during the probationary period. Can we conclude that Justin has met this requirement at 95% significance level? Write the value of the test statistic

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
Justin started working on the sales force of ECE Calls Inc. On average, she closes the contract if 108 USD in 16 sales calls with a standard deviation of 12 USD. Test that the
population mean is at least 100 USD against the alternative that is less than 100 USD. The level of significance is 5%. However, in the ECE Calls Inc., it is required that they
must exceed an average of 100 per contract during the probationary period. Can we conclude that Justin has met this requirement at 95% significance level?
Write the value of the test statistic.
Transcribed Image Text:Justin started working on the sales force of ECE Calls Inc. On average, she closes the contract if 108 USD in 16 sales calls with a standard deviation of 12 USD. Test that the population mean is at least 100 USD against the alternative that is less than 100 USD. The level of significance is 5%. However, in the ECE Calls Inc., it is required that they must exceed an average of 100 per contract during the probationary period. Can we conclude that Justin has met this requirement at 95% significance level? Write the value of the test statistic.
Expert Solution
steps

Step by step

Solved in 3 steps with 4 images

Blurred answer
Similar questions
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