3. For each of the following statements, indicate whether it is True/False. If false, explain why.
I. If the 95% confidence interval for the average purchase of customers at a department store is $50 to $110, then $100 is a plausible value for the population mean at this level of confidence.
II. If the 95% confidence interval for the number of moviegoers who purchase concessions is 30% to 45%, this means that fewer than half of all moviegoers purchase concessions.
III. The 95% Confidence-Interval for μ only applies if the sample data are nearly normally distributed.
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Answer:
1. true
2. true
3. false
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