Samples of n = 4 scores are selected from a population. If the distribution of sample means has a ...

Samples of n = 4 scores are selected from a population. If the distribution of sample means has a standard error  = 5 points, then the population from which the samples were obtained has a standard deviation of  = 20.
 
  Indicate whether the statement is true or false

Question 2

A sample of n = 25 scores is selected from a population with a mean of  = 80 and a standard deviation of  = 20 . The standard error for the sample mean is 20.
 
  Indicate whether the statement is true or false

Question 3

In order for the distribution of sample means to be normal, it must be based on samples of at least n = 30 scores.
 
  Indicate whether the statement is true or false

Question 4

The mean for the distribution of sample means is always equal to the mean for the population from which the samples are obtained.
 
  Indicate whether the statement is true or false