Elementary Statistics: A Step By Step Approach
9th Edition
ISBN: 9780073534985
Author: Allan Bluman
Publisher: McGraw-Hill Science/Engineering/Math
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Chapter 12, Problem 12.1.6RE
If the null hypothesis is rejected in Exercises 1 through 8, use the Scheffé test when the sample sizes are unequal to test the differences between the means, and use the Tukey test when the sample sizes are equal. For these exercises, perform these steps. Assume the assumptions have been met.
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.
6. Temperatures in January The average January high temperatures (in degrees Fahrenheit) for selected tourist cities on different continents are listed. Is there sufficient evidence to conclude a difference in mean temperatures for the three areas? Use the 0.05 level of significance
| Europe | Central and South America | Asia |
| 41 | 87 | 89 |
| 38 | 75 | 35 |
| 36 | 66 | 83 |
| 56 | 84 | 67 |
| 50 | 75 | 48 |
Source: Time Almanac.
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Chapter 12 Solutions
Elementary Statistics: A Step By Step Approach
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