To assess the percentage of students who have a land line re

To assess the percentage of students who have a land line, repeated small samples are surveyed. Which of the following statements is true:

1          The standard deviation of the population can be calculated before the surveys

2          the mean of your samples will always measure the population mean

3          the means of your samples will be randomly distributed

4          the standard deviation of your sample distribution is randomly distributed

Solution

The means of your samples will be randomly distributed so option 3 is true.