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 36 times)

WhattoUnderstand

  • Hero Member
  • *****
  • Posts: 517
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 WhattoUnderstand on Dec 3, 2019

orangecrush

  • Sr. Member
  • ****
  • Posts: 350
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


WhattoUnderstand

  • Member
  • Posts: 517
Reply 2 on: Dec 3, 2019
Thanks for the timely response, appreciate it

bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Left-brain thinking. Left-brain thinking.
Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m
Sleep Requirements Change with Age Sleep Requirements Change with Age
Natural Causes of Climate Change Natural Causes of Climate Change
Coral growth rings as an indicator of environmental change Coral growth rings as an indicator of environmental change
Consistency and Change in Personality Over the Lifespan Consistency and Change in Personality Over the Lifespan
Video: Cardiac Cycle (Part 3 of 4)

For a complete list of videos, visit our video library