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

Author Question: An electronics retailer is interested in studying the incomes of consumers in a particular area. The ... (Read 81 times)

joe

  • Hero Member
  • *****
  • Posts: 627
on: Jun 24, 2018
An electronics retailer is interested in studying the incomes of consumers in a particular area. The population standard deviation is known to be 1,000 . What sample size would the researcher need to use for a 95 confidence interval if the difference between UCL and LCL should not be more than 100?

Question 2

If the Durbin-Watson statistic has a value close to 0, which assumption is violated?
 a. Homoscedasticity.
  b. Normality of the errors.
  c. Independence of errors.
  d. None of these choices.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcarey591

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jun 24, 2018
Answer to Question 1

n = 1, 537 (Note that B equals 50 here, which is half of 100.)

Answer to Question 2

C


joe

  • Member
  • Posts: 627
Reply 2 on: Jun 24, 2018
:D TYSM

amit

  • Member
  • Posts: 364
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Striking examples where high surface area releases heat. Striking examples where high surface area releases heat.
Fusiform Face Area and Autism Fusiform Face Area and Autism
Studying GIF Studying GIF
The inguinal area. Take great care when applying deep pressure in this region The inguinal area. Take great care when applying deep pressure in this region
Palpation for tactile fremitus using metacarpophalangeal joint area Palpation for tactile fremitus using metacarpophalangeal joint area
Me Studying 10% 90% Me Studying 10% 90%
Video: Nucleic acid digestion - brush border enzymes, end products & transport mechanism

For a complete list of videos, visit our video library