If two population variances are known, the test for differences ...

[Jkov05]

If two population variances are known, the test for differences in the two population means does not require the populations to be normally distributed if the sample sizes are large.
 
  Indicate whether the statement is true or false

Question 2

If Z is a standard normal random variable, the area between Z = 0.0 and Z = 1.25 compared to the area between Z = 1.25 and Z = 2.5 will be:
 
  A) smaller.
  B) larger.
  C) the same.
  D) There is not enough information to answer this question.

[ecox1012]

Answer to Question 1

TRUE

Answer to Question 2

B

[Jkov05]

Thank you

[ecox1012]

Happy to help you