Explain the difference between ordinal data and interval ...

[debasdf]

Explain the difference between ordinal data and interval data.

Question 2

Which of the following tests is used to determine whether an additional variable makes a significant contribution to a multiple regression model?
 a. a t test
  b. a z test
  c. an F test
  d. a chi-square test

[Sassygurl126]

Answer to Question 1

The critical difference between them is that the intervals or differences between values of interval data are consistent and meaningful. That is, we can calculate the difference and interpret the results. Because the codes representing ordinal data are arbitrarily assigned except for the order, we cannot calculate and interpret differences.

Answer to Question 2

c