A population has = 60 and = 10. For a sample of n = 25 scores from this population, a sample mean ...

A population has  = 60 and  = 10. For a sample of n = 25 scores from this population, a sample mean of M = 55 would be considered an extreme value.
 
  Indicate whether the statement is true or false

Question 2

A two-factor study with two levels of factor A and three levels of factor B uses a separate group of n = 5 participants in each treatment condition. How many participants are needed for the entire study?
 
  A) 5
  B) 10
  C) 25
  D) 30

Question 3

A population has  = 60 and  = 30. For a sample of n = 25 scores from this population, a sample mean of M = 55 would be considered an extreme value.
 
  Indicate whether the statement is true or false