Textbook ExpertVerified Tutor
10 Nov 2021
Given information
The sample size is n=200 and the number of successes is x=120. The sample was created by conducting a survey via email.
Step-by-step explanation
Step 1.
A survey be email may result in the creation of a biased sample. It is possible that the respondents who reply are only from those families where females do make the purchasing decisions while the respondents where this is not so may choose to ignore the email.
This will result in the sample showing a higher than actual proportion of families where women make the majority of the purchasing decisions.
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