If it is assumed that 70 percent of those who receive a questionnaire by mail will respond and 300 ...
If it is assumed that 70 percent of those who receive a questionnaire by mail will respond and 300 responses are needed, what is the minimum number of questionnaires that should be mailed?
Answer/Solution
428.5
Steps/Work
Minimum no of mail to be sent for getting 300 responses at 70%
= 300/0.7 = 428.5
Option B
= 300/0.7 = 428.5
Option B