This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A car mechanic is thinking of guaranteeing customers that an oil change will take no more than 15 ... (Read 80 times)

RRMR

  • Hero Member
  • *****
  • Posts: 557
on: Dec 3, 2019
A car mechanic is thinking of guaranteeing customers that an oil change will take no more than 15 minutes with a 99.73% confidence level. He takes a few samples of size 5 and finds the process mean to be 13 minutes with a standard deviation of .2 minutes and average sample range of 1.2 minutes. Find the A2, D4, and D3 values and use them to compute the upper and lower limits for an x-bar chart. Use the upper limit to determine if the mechanic can offer a 15 minute guarantee. Assume the mechanic plots the samples on the x-bar control chart and finds the process is in control, is there anything else the mechanic is missing to ensure the process is in control?
Operations Management (Canadian Edition) ¦ Heizer, Render, Griffin ¦ 1st Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by RRMR on Dec 3, 2019

laurnthompson

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Dec 3, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


RRMR

  • Member
  • Posts: 557
Reply 2 on: Dec 3, 2019
Wow, this really help

adf223

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Critical Thinking Model Critical Thinking Model
Cumulative change for six personality-trait domains across the life course show distinct patterns. Cumulative change for six personality-trait domains across the life course show distinct patterns.
Many gasoline service stations have signs posted warning customers to place plastic fuel containers ... Many gasoline service stations have signs posted warning customers to place plastic fuel containers ...
Binding change model for ATP synthase Binding change model for ATP synthase
Tree rings as indicators of environmental change Tree rings as indicators of environmental change
If a graph has the following x-intercepts, which value of x is the instantaneous rate of change ... If a graph has the following x-intercepts, which value of x is the instantaneous rate of change ...
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library