This topic contains a solution. Click here to go to the answer

Author Question: What is the probability that the machine is off-line between 21 and 27 minutes? What will be an ... (Read 27 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
What is the probability that the machine is off-line between 21 and 27 minutes?
 
  What will be an ideal response?

Question 2

The Student's t-distribution is required to determine the confidence interval for the difference between two normal population means with unknown population variances.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Meganchabluk

  • Sr. Member
  • ****
  • Posts: 301
Answer to Question 1

21 to 27 minutes represents 40 of the distance between 15 and 30 minutes.
Hence, P(21  X 27 ) = 0.40.

Answer to Question 2

TRUE




PhilipSeeMore

  • Member
  • Posts: 561
Reply 2 on: Jun 24, 2018
Excellent


rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

For a complete list of videos, visit our video library