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A business school conducted a survey of companies in its state. They mailed a questionnaire to...

A business school conducted a survey of companies in its state. They mailed a questionnaire to 200 small companies, 200 medium-sized companies and 200 large companies. The rate of nonresponse is important in deciding how reliable survey results are. Here are the data:

Small              Medium           Large
Response             125                       81                40
No response          75                      119              160

What is the overall rate of nonresponse? If response rate is not related to size of company, you would expect all companies, regardless of size, to have a similar response rate.

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milcah answered 7 months ago
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