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

Author Question: A local rental car agency has 100 cars. The rental rate for the winter months is 60. Find the ... (Read 123 times)

savannahhooper

  • Hero Member
  • *****
  • Posts: 576
on: Jul 25, 2018
A local rental car agency has 100 cars. The rental rate for the winter months is 60. Find the probability that in a given winter month at least 70 cars will be rented. Use the normal distribution to approximate the binomial distribution.
 
  Round the standard deviation to three decimal places to work the problem.

Question 2

A researcher wishes to test whether the rate of defectives among computers from manufacturer A differs from the rate of defectives among computers from manufacturer B.
 
  She selects two independent random samples and finds that 1.5 of 200 computers from manufacturer A are defective and 3.5 of 400 computers from manufacturer B are defective.
  Are the conditions and assumptions for inference with the two-proportion z-test satisfied? Explain your answer.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

TheDev123

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 25, 2018
Answer to Question 1

P(x  69.

Answer to Question 2

The assumptions and conditions necessary for inference are not satisfied. There are only 3 defectives from manufacturer A . This violates the condition which requires that at least 5 successes and at least 5 failures be observed in each sample.


savannahhooper

  • Hero Member
  • *****
  • Posts: 576
Reply #2 on: Jul 25, 2018
TY


TheDev123

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 25, 2018
You're welcome


« previous next »
 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

A heavy winter coat with countershading in a mixed-breed dog A heavy winter coat with countershading in a mixed-breed dog
Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken
How to find the first and second differences for any table of values How to find the first and second differences for any table of values
Find angles (in radians) from trigonometric ratio Find angles (in radians) from trigonometric ratio
To find derivative us the chain rule To find derivative us the chain rule
Hector makes payments of $2000.00 into an RRSP at the beginning of every six months starting ... Hector makes payments of $2000.00 into an RRSP at the beginning of every six months starting ...
Video: Miller's reaction chamber experiment Animation

For a complete list of videos, visit our video library