In a Wilcoxon Signed Rank Sum Test, the Test Statistic $D \neq 0$

question 31

Multiple Choice

In a Wilcoxon signed rank sum test, the test statistic is calculated as T = 45. The alternative hypothesis is stated as: The location of population 1 is different from the location of population 2. If there are n = 15 observations for which $D \neq 0$ , and the 5% significance level is used, then:

• A) the null hypothesis will be rejected.
• B) the null hypothesis will not be rejected.
• C) the test results are inconclusive.
• D) the normal approximation must be used.

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Definitions:

Common-Value Auction

In a common-value auction, all bidders have the same valuation for the auctioned item, but they may have different information about the item's actual value.

Private-Value Auction

An auction in which the value of the item being bid on is subjective and differs for each bidder, based on their private evaluation.

Dutch Auction

A market structure where the price of an item is lowered until it meets a bid, opposite of the traditional auction format where prices ascend.

Second-Highest Willingness

The concept of determining the price or value of an item based on the highest bid that did not win in an auction or competitive bidding process.