Concept explainers
For Exercises 3 through 8, the null hypothesis was rejected. Use the Scheffe test when sample sizes are unequal or the Tukey test when sample sizes are equal, to test the differences between the pairs of means. Assume all variables are
6. Exercise 17 in Section 12-1.
17. Microwave Oven Prices A research organization tested microwave ovens. At a = 0.10, is there a significant difference in the average prices of the three types of oven?
Watts | ||
1000 | 900 | 800 |
270 | 240 | 180 |
245 | 135 | 155 |
190 | 160 | 200 |
215 | 230 | 120 |
250 | 250 | 140 |
230 | 200 | 180 |
200 | 140 | |
210 | 130 |
A computer printout for this exercise is shown. Use the P-value method and the information in this printout to test the claim. (The information in this exercise will be used in Exercise 6 of Section 12-2.)
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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill