Concept explainers
For Exercises 3 through 8, the null hypothesis was rejected. Use the Scheffe test when
7. Exercise 18 in Section 12-1.
18. Calories in Fast-Food Sandwiches Three popular fast-food restaurant franchises specializing in burgers were surveyed to find out the number of calories in their frequently ordered sandwiches. At the 0.05 level of significance, can it be concluded that a difference in mean number of calories per burger exists? (The information in this exercise will be used for Exercise 7 in Section 12-2.)
FF#1 | FF#2 | FF#3 |
970 | 1010 | 740 |
880 | 970 | 540 |
840 | 920 | 510 |
710 | 850 | 510 |
820 |
Source: www.fatcalories.com
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