If you examined the effect of studying 0, 1, or 2 hours a day on grades, what would be the value of ...

If you examined the effect of studying 0, 1, or 2 hours a day on grades, what would be the value of k?
 
  a. 1
  b. 3
  c. the value of N
  d. We don't have enough information to decide.

Question 2

When it is established that a change in the independent variable actually
  produces a change in the dependent variable, then the research must be
 
  a. post-facto
  b. cross-sectional
  c. experimental
  d. none of these

Question 3

The sum of squared deviations for a data set is equal to _____.
 
  a. 0
  b. N
  c. a positive number
  d. a negative number

Question 4

If you examined the effect of studying 0, 1, or 2 hours a day on grades, how could you write the alternative hypothesis?
 
  a. 1 - 2 - 3 = 0
  b. 1 = 2 = 3
  c. All  are not equal.
  d. Not all  are equal.

Question 5

True population may never be infinite.
 
  Indicate whether the statement is true or false