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 76 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

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Sleep Requirements Change with Age Sleep Requirements Change with Age
Ecological sensitivity to climate change Ecological sensitivity to climate change
Climate Change: Greenhouse gases Timescale Climate Change: Greenhouse gases Timescale
Capital-Biased Technological Change Capital-Biased Technological Change
For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ... For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ...
A single-nucleotide change in the DNA encoding -globin A single-nucleotide change in the DNA encoding -globin
Video: Lactation and Breast Feeding

For a complete list of videos, visit our video library