What conditions must be satisfied in order to construct a

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A random sample of 100 adults was selected. 80 adults in the sample said they were non-smokers

1. What conditions must be satisfied in order to construct a confidence interval on binomial parameter p?

2. Construct a 95 percent confidence interval for the population proportion, p, of non-smokers.

3. Interpret your answer to question 2, i.e., what is your conclusion?

4. Is 0.75 a plausible value for the population proportion, p, of nonsmokers? Explain.

5. Suppose we want a 99% confidence interval on the population proportion, p, of non-smokers. Will the 99% C.I be wider or narrower than the 95% C.I.? Explain.

Reference no: EM13615392

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