Using the Following Data,the Wilcoxon Signed-Rank Hypothesis Test Is Used

question 7

Multiple Choice

Using the following data,the Wilcoxon signed-rank hypothesis test is used to test the hypothesis that the test results of a treatment after training are greater than the test results before the treatment. What is the sum of the ranks?

• A)41
• B)28
• C)19 and −7
• D)6 and 15

Analyze how changes in preferences, incomes, and prices of related goods affect demand.

Understand the relationship between price changes and consumer demand (income effect, substitution effect).

Identify the impact of price changes on complementary and substitute goods.

Distinguish between normal and inferior goods and their responses to income changes.

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