ProblemSet3

ProblemSet3 - Process and Systems Analysis BUS 351...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
BUS 351 Professor Diwas KC Homework 3 Posted: March 25, 2010 Table 1 Number of observations in subgroup (n) Factor for X- Bar Chart (A2) Factor for lower control limit in R Chart (D3) Factor for upper control limit in R Chart (D4) Factor to estimate standard deviation (d2) 2 1.88 0 3.27 1.128 3 1.02 0 2.57 1.693 4 0.73 0 2.28 2.059 5 0.58 0 2.11 2.326 6 0.48 0 2 2.534 7 0.42 0.08 1.92 2.704 8 0.37 0.14 1.86 2.847 9 0.34 0.18 1.82 2.97 10 0.31 0.22 1.78 3.078 1. P-Chart Problem Dominoes Pizza wants to develop a control chart to ensure new pizza delivery personnel are suited for the job. Delivery personnel must be able to read the destination address on a pizza label and deliver the pizza(s) within 30 minutes. From past records, the error rate for delivery personnel going to the wrong address is 7%. A random sample of 50 pizza orders is taken each week for a delivery person’s first 7 weeks on the job. Using the following data, construct a p- chart. Is this delivery person suited for the job? Week # Percentage Error
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

ProblemSet3 - Process and Systems Analysis BUS 351...

This preview shows document pages 1 - 2. Sign up to view the full document.

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