The output of a group of 11 workers before and after an improvement in the lighting in

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The output of a group of 11 workers before and after an improvement in the lighting in their factory is as follows:

Before 52 60 58 58 53 51 52 59 60 53 55 After 56 62 63 50 55 56 55 59 61 58 56

Test whether there is a significant improvement in performance

(a) Assuming these are independent samples,

(b) Assuming they are dependent.

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Statistics For Economics Accounting And Business Studies

ISBN: 978027368308

4th Edition

Authors: Michael Barrow

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Question Posted: Aug 25, 2020 08:21 AM

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The output of a group of 11 workers before and after an improvement in the lighting in

Question:

Before 52 60 58 58 53 51 52 59 60 53 55 After 56 62 63 50 55 56 55 59 61 58 56

Step by Step Answer:

Assuming these are independent samples we use t test for independent samples The null hypothesis t...View the full answer

Statistics For Economics Accounting And Business Studies

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