9.31 Nonresponse in a survey.
A business school conducted a survey of companies in its state. It 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 on response to this survey.
nresp
Small | Medium | Large | |
---|---|---|---|
Response | 124 | 80 | 41 |
No response | 76 | 120 | 159 |
Total | 200 | 200 | 200 |
Note that you answered parts (a) through (c) of this exercise if you completed Exercise 2.112 (page 115).
9.31
(a) 59.17%.
(b) Larger business have higher nonresponse rates. 79.5% of large, 60% of medium, and 38% of small businesses did not respond.
(d) There is no association between size of business and response rate, There is an association between size of business and response rate. . The data provide evidence of an association between size of business and response rate.