Author Question: Discuss the various implications of the central limit theorem to the practice of ... (Read 81 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
Discuss the various implications of the central limit theorem to the practice of sampling.

Question 2

A researcher is examining the row and column totals in a contingency table of stores shopped at by gender. What are these called?
 a. marginals
  b. subtotals
  c. totals
  d. running totals



gasdhashg

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

The central limit theorem can be applied only when certain conditions hold during probability sampling (it doesn't hold for non-probability sampling methods). Among its implications for sampling are:
 If the population distribution is normal, the sampling distribution of the mean will be normal for all sample sizes.
 If the population distribution is not normal, the sampling distribution of the mean approaches normality as the sample size increases.
 The mean of the sampling distribution (of the mean) is an unbiased estimate of the population mean.
 The standard error of the sampling distribution (of the mean) is the population standard deviation divided by the square root of the sample size.

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

For a complete list of videos, visit our video library