Are attitudes toward shopping changing? Sample surveys show that fewer people enjoy shopping than in the past.
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Are attitudes toward shopping changing? Sample surveys show that fewer people enjoy shopping than in the past. A recent survey asked a nationwide random sample of 250 adults if they agreed or disagreed with the statement: "I like buying new clothes, but shopping is often frustrating and time-consuming." The population that the poll wants to draw conclusions about is all U.S. residents aged 18 and over. Suppose that in fact 60% of all adult U.S. residents would say "Agree" if asked the same question.
1. Describe the sampling distribution of the proportion of respondents who agree with the statement. Draw and label a Normal Model.
2. What is the probability that 70% or more of the respondents agree?
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