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 148 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?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

How to manually find the mean, variance, and standard deviation for a set of numbers How to manually find the mean, variance, and standard deviation for a set of numbers
Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ... Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ...
How to find the equation of a line that is perpendicular to a line passing through a point How to find the equation of a line that is perpendicular to a line passing through a point
Target Heart Rate Target Heart Rate
Find Your Blind Spot Find Your Blind Spot
A bus starts from restat a station and accelerates at a rate of 2 m/s^2 for 15 seconds. It then runs A bus starts from restat a station and accelerates at a rate of 2 m/s^2 for 15 seconds. It then runs
Video: Buffers definition and the role of buffer in the body

For a complete list of videos, visit our video library