It is believed that the quality of a certain product is related to the time of day
Question:
It is believed that the quality of a certain product is related to the time of day the product is produced. The following table summarizes the results of tests on some random samples produced in a single day.
Use a 5 % test to determine whether the quality of the product is independent of the time it was produced.
Transcribed Image Text:
Time Morning shift Aftemoon shift Evening shift Good 25 15 10 So-so 10 20 20 Bad 5 5 10
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Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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