The output of a group of 11 workers before and after an improvement in the lighting in
Question:
The output of a group of 11 workers before and after an improvement in the lighting in their factory is as follows:
Test whether there is a significant improvement in performance
(a) Assuming these are independent samples,
(b) Assuming they are dependent.
Transcribed Image Text:
Before 52 60 58 58 53 51 52 59 60 53 55 After 56 62 63 50 55 56 55 59 61 58 56
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Assuming these are independent samples we use t test for independent samples The null hypothesis t...View the full answer
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Related Book For
Statistics For Economics Accounting And Business Studies
ISBN: 978027368308
4th Edition
Authors: Michael Barrow
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