A very large population has mean u and standard deviation o. A random sample of
ID: 3231818 • Letter: A
Question
A very large population has mean u and standard deviation o. A random sample of size n (where n is at least 2) is to be taken from the population. The sample mean will be denoted by x. Which of the following is NOT known (A) The mean of all the possible values of r i Au. (B) The standard deviation of the sample is (c) If n is large, the distribution of all possible values ofx is approximately normal (D) The larger the sample, the smaller the standard deviation of all the possible values of x. (E) The standard deviation of all the possible values of x is less than o.Explanation / Answer
A)option E is correct
The standard deviation of all possible values of x bar is less than