In: Statistics and Probability
An online site presented this question, "Would the recent norovirus outbreak deter you from taking a cruise?" Among the 34,836 people who responded, 64% answered "yes." Use the sample data to construct a 95% confidence interval estimate for the proportion of the population of all people who would respond "yes" to that question. Does the confidence interval provide a good estimate of the population proportion? nothingless thanpless than nothing (Round to three decimal places as needed.) Does the confidence interval provide a good estimate of the population proportion? A. Yes, the sample is large enough to provide a good estimate of the population proportion. B. No, the responses are not independent. C. No, the sample is a voluntary sample and might not be representative of the population. D. Yes, all the assumptions for a confidence interval are satisfied.
Refer Standard normal table/Z-table or use excel function "=NORM.S.INV((1-0.025))" to find the Z-value. |