Homework2 Solution

Homework2 Solution - 6.15. (a) MTB > Stat > Control...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 6.15. (a) MTB > Stat > Control Charts > Variables Charts for Subgroups > Xbar-R Yes, the process is in control—though we should watch for a possible cyclic pattern in the averages. 6.15 continued (b) MTB > Stat > Control Charts > Variables Charts for Subgroups > Xbar-R Under “Options, Estimate” use subgroups 1:20 to calculate control limits. Test Results for R Chart of Ex6.15bSt TEST. One point more than 3.00 standard deviations from center line. Test Failed at points: 25, 26, 27, 31, 33, 34, 35 A strongly cyclic pattern in the averages is now evident, but more importantly, there are several out-of-control points on the range chart. 6.16. (a) MTB > Stat > Control Charts > Variables Charts for Subgroups > Xbar-S Under “Options, Estimate” use subgroups 1:20 to calculate control limits. Test Results for Xbar Chart of Ex6.15bSt TEST 1. One point more than 3.00 standard deviations from center line....
View Full Document

This note was uploaded on 10/25/2010 for the course ISE 426 taught by Professor Palmer during the Fall '06 term at USC.

Page1 / 6

Homework2 Solution - 6.15. (a) MTB > Stat > Control...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online