Katrina wants to estimate the proportion of adults who read

Last updated: 11/30/2023

Katrina wants to estimate the proportion of adults who read at least 10 books last year To do so she obtains a simple random sample of 100 adults and constructs a 95 confidence interval Matthew also wants to estimate the proportion of adults who read at least 10 books last year He obtains a simple random sample of 400 adults and constructs a 99 confidence interval Assuming both Katrina and Matthew obtained the same point estimate whose estimate will have the smaller margin of error Justify your answer Whose estimate will have the smaller margin of error and why O A Katrina s estimate will have the smaller margin of error because the sample size is smaller and the level of confidence is lower OB Matthew s estimate will have the smaller margin of error because the larger sample size more than compensates for the higher level of confidence OC Matthew s estimate will have the smaller margin of error because the sample size is larger and the level of confidence is higher OD Katrina s estimate will have the smaller margin of error because the lower level of confidence more than compensates for the smaller sample size