EMSE 8100: Methodology Worksheet - Praxis Proposal Assignment

Internal Code: MAS6521

Praxis Proposal Assignment:

Questions: 1) A plant manager wants to test the consistency of manufacturing his product length between two of his machines. He takes a sample of 5 products from each machine and determines the following sample statistics for product length: a. Based on the data above test the hypothesis that the product lengths are the same at the ?=0.05 level of significance. Site all tests and assumptions used. b. Calculate the p-value of your test. c. If the plan manager had 3 machines what test would he use to convince himself that all three were identical? 2) In a manufacturing setting the effect of operator and machine type on the surface finish was tested. The higher the score for surface finishes the better. The goal would be to determine if an operator or machine needs to go. a). Determine if an operator or machine needs to go All tests should be performed at the ?=.05 level of significance.