16.35 Oil-free frying comparison.
Exercise 7.10 (page 371) describes an experiment in which a group of food experts to compare foods made with hot oil and their oil-free fryer. Here are the data.
fryer
| Expert | 1 | 2 | 3 | 4 | 5 |
| Hot Oil | 78 | 83 | 61 | 71 | 63 |
| Oil Free | 75 | 85 | 67 | 75 | 66 |
Using the signed rank test, is there a significant difference in taste? State appropriate hypotheses and carry out the test using .
16.35
H0: There is no difference in the distribution of taste between food made with hot oil and food made oil free. Ha: One oil preparation method has systematically higher taste ratings than the other. . , . , . The data do not show a systematic difference in food taste between food made with hot oil and food made oil free.