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

Author Question: What proportion of the time will it take the clean-up crew 93.0 or more hours to clean the ... (Read 163 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jul 24, 2018
What proportion of the time will it take the clean-up crew 93.0 or more hours to clean the plant?

Question 2

If we assume nothing about the shape of distribution, approximately what percentage of all such tires will last between 42,500 and 57,500 miles?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

DHRUVSHAH

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 24, 2018
Answer to Question 1

z = (93 -80) / 6.5 = 2 . Therefore, 93.0 is 2 standard deviations above the mean. Hence, 2.5 of the time more than 93.0 hours will be required.

Answer to Question 2

According to Chebyshev's Theorem, at least 89 of all such tires will last between 42,500 and 57,500 miles (i.e., within three standard deviations of the mean).


ghost!

  • Member
  • Posts: 560
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

mochi09

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Our body in 24 hours Our body in 24 hours
Multiple-dose drug administration: drug A and drug B are administered every 12 hours; drug B reaches Multiple-dose drug administration: drug A and drug B are administered every 12 hours; drug B reaches
ESM Study of Time Spent with Family ESM Study of Time Spent with Family
Time Estimates for Specific Office Procedures Time Estimates for Specific Office Procedures
The Inverted Income Pyramid: The Proportion of Income Received by Each Fifth of the U.S. Population The Inverted Income Pyramid: The Proportion of Income Received by Each Fifth of the U.S. Population
A new drug development time line with the four phases of drug approval. A new drug development time line with the four phases of drug approval.
Video: ADH and the arterioles, kidneys, sweat glands and the Atrial natriuretic peptide (ANP)

For a complete list of videos, visit our video library