In a Wilcoxon Signed Rank Sum Test for Matched Pairs

question 63

Short Answer

In a Wilcoxon signed rank sum test for matched pairs with n = 35, the rank sums of the positive and negative differences are 380 and 225, respectively. The value of the standardised test statistic z is: $\begin{array} { | l | l | } \hline \text { A. } & 1.689 . \\\hline \text { B. } & 1.065 . \\\hline \text { C. } & 1.206 . \\\hline \text { D. } & 1.400. \\\hline\end{array}$

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Definitions:

Cost of Goods Sold

The direct costs tied to the production of goods sold by a company, including both materials and labor costs.

Perpetual Inventory System

An inventory management method where inventory updates are made continuously as sales are made and purchases are received.

Last-In, First-Out

An inventory valuation method that assumes the most recently produced items are sold first, with costs of the latest inventory purchases recorded as cost of goods sold.

Inventory

The sum of products and materials a company has in stock for the purpose of selling or utilizing in manufacturing processes.