6.4 2.0 9.4 3.6 3.6 1.8 4.5 11.6 3.7 2.5 8.8 Chocolate 31.9 12.7 1.9 1.7 3.1 Nobel 3.3 1.5 11.4 25.5 12.7 1.9

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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Testing for Rank Correlation. In Exercises 7–12, use the rank correlation coefficient to test for a correlation between the two variables. Use a significance level of α = 0.05

Chocolate and Nobel Prizes The table below lists chocolate consumption (kg per capita) and the numbers of Nobel Laureates (per 10 million people) for several different countries (from Data Set 16 in Appendix B). Is there a correlation between chocolate consumption and the rate of Nobel Laureates? How could such a correlation be explained?

6.4
2.0
9.4
3.6
3.6
1.8
4.5
11.6
3.7
2.5
8.8
Chocolate
31.9
12.7
1.9
1.7
3.1
Nobel
3.3
1.5
11.4 25.5
12.7
1.9
Transcribed Image Text:6.4 2.0 9.4 3.6 3.6 1.8 4.5 11.6 3.7 2.5 8.8 Chocolate 31.9 12.7 1.9 1.7 3.1 Nobel 3.3 1.5 11.4 25.5 12.7 1.9
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