SCENARIO 10-7 A Buyer for a Manufacturing Plant Suspects That His Primary

question 14

Short Answer

SCENARIO 10-7
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.
The data collected is presented in the table below,with some summary statistics presented (all of these might not be necessary to answer the questions which follow).The buyer believes that the differences are normally distributed and will use this sample to perform an appropriate test at a level of significance of 0.01.

10-20 Two-Sample Tests
-Referring to Scenario 10-7,what is the 95% confidence interval estimate for the mean difference in prices?

---

Definitions:

Routing Sheets

Routing sheets provide detailed instructions and the path materials take through a manufacturing process, from start to finish.

Electronic Version

A digital form of a document, book, or any other type of content, accessible through electronic devices.

Productivity

The measure of efficiency of a person, machine, factory, system, etc., in converting inputs into useful outputs.

Outputs

The results or products generated from operational or production processes.