9 R 084 S In a survey on supernatural experiences 714 of 4
Last updated: 11/28/2023
9 R 084 S In a survey on supernatural experiences 714 of 4 015 adult Americans surveyed reported that they had seen a ghost Assume that this sample is representative of the population of adult Americans USE SALT a Use the given information to estimate the proportion of adult Americans who would say they have seen a ghost Round your answer to three decimal places b Verify that the conditions for use of the margin of error formula to be appropriate are met The condition that the sample is a random sample from the population of interest or the sample is selected in a way that should result in a representative sample is met the sample size is large is met c Calculate the 95 margin of error Round your answer to three decimal places MY NOTES The condition that d Interpret the margin of error in context It is unlikely that the estimated proportion of all adult Americans who would say they have seen a ghost differs from the true population proportion by less than the value calculated above O It is impossible that the estimated proportion of all adult Americans who would say they have seen a ghost differs from the true population proportion by more than the value calculated above OIt is impossible that the estimated proportion of all adult Americans who would say they have seen a ghost differs from the true population proportion by less than the value calculated above It is unlikely that the estimated proportion of all adult Americans who would say they have seen a ghost differs from the true population proportion by more than the value calculated above It is likely that the estimated proportion of all adult Americans who would say they have seen a ghost differs from the true population proportion by the value calculated above Interpret the interval There is a 90 chance that the true proportion of all adult Americans who would say they have seen a ghost falls directly in the middle of this interval We are 90 confident that the mean number of all adult Americans who would say they have seen a ghost falls within this interval e Construct a 90 confidence interval for the proportion of all adult Americans who would say they have seen a ghost Enter your answer using interval notation Round your numerical values to three decimal places