Using the normal distribution,we know that ______ % of all random sample means will fall within ±1.96 standard errors of the true population mean.
A)68
B)95
C)99
D)100

Question

Quizplus · Accepted Answer

According to the normal distribution, approximately 95% of all random sample means will fall within ±1.96 standard errors of the true population mean. This is known as the 95% confidence interval. So, the correct choice is B.

Using the Normal Distribution,we Know That ______ % of All