Friday
April 18, 2014

Homework Help: statistics

Posted by Brenda on Saturday, November 12, 2011 at 5:46pm.

Chapter 06, Problem 8
A tire manufacturer has been concerned about the number of defective tires found recently. In order to evaluate the true magnitude of the problem, a production manager selected ten random samples of twenty units each for inspection. The number of defective tires found in each sample are as follows:

Develop a p-chart with a z = 3.
Note. If the lower control limit is negative, round the LCL to zero.
CL = , round your answer to 3 decimal places, the tolerance is +/-0.001
UCL = , round your answer to 3 decimal places, the tolerance is +/-0.002
LCL = , round your answer to 3 decimal places, the tolerance is +/-0.002

Suppose that the next four samples selected had 6, 3, 3, and 4 defects. What conclusion can you make?
The process is out of control.
The process is in control.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - Suppose a tire manufacturer wants to set a mileage guarantee on its...
Statistics - Wrong tire pressure can increase tire wear and decrease gas mileage...
Prob and Stat - A tire manufacturer guarantess that its tires will last for at ...
Statistics - A tire manufacturer wishes to set a minimum mileage guarantee on a ...
Statistics NEEED YOUR HELP ASAP!!!!!!!!!!!!!! - The manufacturer of the X-15 ...
statistics - Please help asap! A tire company is considering a tire replacement ...
Statistics - QNT 561: I want the Statistics question problems for chapter 3 and ...
math - HELP PLEASE! I don't understand how to do the problem! Please help thanks...
Statistics - The lifetime of a certain type of automobile tire (in thousands of ...
statistics - one of the major U.S. tire makers wishes to review its warranty for...

Search
Members