MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A company has two chemist, Mr. Morris and Mr. Logan to produce their drinks.

Mr. John, their boss, is not pleased with Mr. Logan’s attitude to work, so he is contemplating firing Mr. Logan and
keeping Mr. Morris only to perform this job. The problem, however, is that Mr. Logan seems to produce a higher quality drink whenever he oversees production when compared to Mr. Morris. Before making a final decision,

Mr. John decided to collect data measuring the quality of different batches of
drinks produced by Mr. Morris and Mr. Logan  to make a better-informed
decision. The results, measured on a quality scale, are listed below:

Name

Average

Standard Deviation

Sample Size

Mr. Logan

98

1

8

Mr. Morris

94

4

10


a) Based on this data above, advise Mr. John whether Mr. Logan is
better at making the signature sauce than Mr. Morris by using
hypothesis testing – use the critical value approach with a level of
significance at 5%. 

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