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.
4. Sodium Content of Microwave Dinners Three brands of microwave dinners were advertised as low in sodium. Random samples of the three different brands show the following milligrams of sodium. At α = 0.05, is there a difference in the amount of sodium among the brands?
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Elementary Statistics: A Step By Step Approach
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