A test is being conducted to test the difference between two ...

[charchew]

A test is being conducted to test the difference between two population means using data that are gathered from a matched pairs experiment. If the paired differences are normal, then the distribution used for testing is the:
 a. normal distribution.
  b. binomial distribution.
  c. Student t-distribution.
  d. F-distribution.

Question 2

The time series component that reflects variability over short repetitive time periods and has duration of less than one year is called:
 a. long-term trend c. seasonal variation
  b. cyclical variation d. random variation

[elyse44]

Answer to Question 1

C

Answer to Question 2

C