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Author Question: Explain the difference between ordinal data and interval data.[br][br][b][color=#FBB117]Question ... (Read 78 times)

debasdf

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on: Jun 24, 2018
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

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Reply #1 on: Jun 24, 2018
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


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