It is hypothesized that in a graduating class of 750 students, there will be a strong positive correlation between that student’s class rank, and their rank in a schoolwide debate competition. For a sample of n=10 students, the class rank and debate competition ranks are as follows: Class Rank(X)Rank in Schoolwide Debate Competition(Y)29384756657483921101011 What is the scale of measurement for X,What is the scale of measurement for Y,Which correlational coefficient should you use (Pearson or Spearman) and why?

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What is the scale of measurement for X,What is the scale of measurement for Y,Which correlational coefficient should you use (Pearson or Spearman) and why?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 23PFA

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Question

It is hypothesized that in a graduating class of 750 students, there will be a strong positive correlation between that student’s class rank, and their rank in a schoolwide debate competition. For a sample of n=10 students, the class rank and debate competition ranks are as follows:

Class Rank (X)	Rank in Schoolwide Debate Competition (Y)
2	9
3	8
4	7
5	6
6	5
7	4
8	3
9	2
1	10
10	11

What is the scale of measurement for X,What is the scale of measurement for Y,Which correlational coefficient should you use (Pearson or Spearman) and why?

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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