Answer:
Step-by-step explanation:
Given that a research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=1096 and x=542 who said yes.
i.e. sample size =
who said yes =
Sample proportion =
Std error of proportion =
Margin of error 95%
Hence confidence interval for proportions
=
a) Point estimate
B) Margin of error =
C) Conf interval =
D) We are 95% confident that for large random samples representing the population, the proportion of yes will lie between these two values.