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 280 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?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Rate of Residential Change, Past Year, in the United States Rate of Residential Change, Past Year, in the United States
Respiratory Rate Ranges of Various Age Groups Respiratory Rate Ranges of Various Age Groups
How to find the resultant vector of any two vectors How to find the resultant vector of any two vectors
How to find the derivatives of exponential functions How to find the derivatives of exponential functions
How to find the unknown angle of a triangle using the sine law (Part 2) How to find the unknown angle of a triangle using the sine law (Part 2)
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: Graded potentials - electrical characteristics and types

For a complete list of videos, visit our video library