A Buyer for a Manufacturing Plant Suspects That His Primary

question 132

Multiple Choice

A buyer for a manufacturing plant suspects that his primary supplier of raw materials is overcharging.In order to determine if his suspicion is correct,he contacts a second supplier and asks for the prices on various identical materials.He wants to compare these prices with those of his primary supplier.He collected data on 6 different materials from both suppliers.He believes that the differences are normally distributed.Which of the following tests will be the most appropriate?

• A)Pooled-variance t test.
• B)Paired t test.
• C)Wilcoxon rank sum test.
• D)Kruskal-Wallis rank Test.

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Definitions:

Graphically

In a manner that uses diagrams, charts, maps, or other visual representations to explain or illustrate.

Set of Equations

A group of equations that are solved together, where each equation may have multiple variables.

Graphically

Representing data or information using visual elements such as charts, graphs, or diagrams.

Set of Equations

A collection of mathematical equations that are related by one or more variables, often used to solve multi-variable problems.