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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2. Jim Miller works in the personnel department for a car company. He is told by his supervisor to investigate the difference in the average number of sick days between blue collar workers and white
collar workers. So he obtained a random sample of 9 blue collar workers and a random sample of 9 white collar workers. He records the results below.
At 10% level of significance, is there sufficient evidence to indicate a difference in mean sick days between blue collar workers and white collar workers.

Blue Collar Workers
White Collar Workers
Mean
23.12
17.90
Standard Deviation
5.01
2.28
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Transcribed Image Text:Blue Collar Workers White Collar Workers Mean 23.12 17.90 Standard Deviation 5.01 2.28
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