The standard deviation of the population of individual scores is 15. A random sample of 10 scores ...

The standard deviation of the population of individual scores is 15. A
  random sample of 10 scores yields a mean of 100. Calculate the standard error
  of the mean.
 
  What will be an ideal response?

Question 2

The proportion of values in one half of a z-distribution
 
  a. is negative.
  b. can be negative or positive, depending on which side of the distribution is examined.
  c. is always .50.
  d. depends on the z-score of interest.

Question 3

The chi square test demands that cell entries be independent of each
  other.
 
  Indicate whether the statement is true or false

Question 4

Chi square may only be used to compare frequencies, never sample means.
 
  Indicate whether the statement is true or false

Question 5

Chi square may only be used for the analysis of post-facto research data.
 
  Indicate whether the statement is true or false