A recipe for sparkling grape juice calls for 1/2 quarts of sparkling water and 3/4 quarts of grape juice how much sparkling wate
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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.