In a random telephone survey to estimate the proportion of households with a personal
computer, 720 out of 960 households responded that they did have a personal computer
at home.
(a) At the 90% confidence level, the company commissioning the survey would like to
have margin of error which is no more than 3%. What sample size is required in
this case? (Use a conservative method in determining the sample size.)|||sorry but what is your question.
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