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

Author Question: A sample of 200 elements from a population with a known standard deviation is selected. For an ... (Read 300 times)

RODY.ELKHALIL

  • Hero Member
  • *****
  • Posts: 591
on: Jun 24, 2018
A sample of 200 elements from a population with a known standard deviation is selected. For an interval estimation of , the proper distribution to use is the
 a. normal distribution.
   b. t distribution with 200 degrees of freedom.
   c. t distribution with 201 degrees of freedom.
   d. t distribution with 199 degrees of freedom.

Question 2

Which of the following forecasting methods puts the least weight on the most recent time series value?
 a. exponential smoothing with  = .3
 b. exponential smoothing with  = .2
 c. moving average using the most recent 4 periods
  d. moving average using the most recent 3 periods


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 24, 2018
Answer to Question 1

a

Answer to Question 2

b


RODY.ELKHALIL

  • Member
  • Posts: 591
Reply 2 on: Jun 24, 2018
Excellent

bblaney

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

« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Selected skeletal muscles (anterior view). Selected skeletal muscles (anterior view).
Selected Local Anesthetics Selected Local Anesthetics
Sample of a weekly bookkeeping ledger. Sample of a weekly bookkeeping ledger.
Specific Gravity of Selected Materials Specific Gravity of Selected Materials
How to sketch a quadratic equation that is in standard form (Question 1) How to sketch a quadratic equation that is in standard form (Question 1)
Write the following in standard form Write the following in standard form
Video: Lipid digestion - mouth, stomach and small intestine

For a complete list of videos, visit our video library