Concept explainers
For Exercises 1 through 12, use the Kruskal-Wallis test and perform these steps.
a. State the hypotheses and identify the claim.
b. Find the critical value.
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.
10. Amounts of Caffeine in Beverages The amounts of caffeine in randomly selected regular (small) servings of assorted beverages are listed. If someone wants to limit caffeine intake, does it really matter which beverage she or he chooses? Is there a difference in caffeine content at α = 0.05?
Teas | Coffees | Colas |
70 | 120 | 35 |
40 | 80 | 48 |
30 | 160 | 55 |
25 | 90 | 43 |
40 | 140 | 42 |
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Check out a sample textbook solutionChapter 13 Solutions
Elementary Statistics: A Step By Step Approach
Additional Math Textbook Solutions
Essentials of Statistics (6th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Statistics: Informed Decisions Using Data (5th Edition)
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