A wine magazine wants to know if chefs can tell the difference between duck liver pâté and wet dog food. Eighteen chefs were asked to rate both the pâté and dog food on a scale from 1 to 5, with 1 corresponding to "inedible" and 5 to "very tasty." The results are shown in the following table. To determine whether chefs have a preference between pâté and dog food using the sign test, the competing hypotheses are ________.
A) H0: p = 0.5; HA: p ≠ 0.5
B) H0: p ≥ 0.5; HA: p < 0.5
C) H0: p ≤ 0.5; HA: p > 0.5
D) H0: p ≠ 0.5; HA: p = 0.5
Correct Answer:
Verified
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