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

Author Question: A researcher decides to use two strata from a population of size N=100, where 60 elements belong to ... (Read 55 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
on: Jun 29, 2018
A researcher decides to use two strata from a population of size N=100, where 60 elements belong to Stratum A and 40 to Stratum B. To obtain her sample of size n=20, the researcher randomly selects 12 elements from Stratum A and 8 elements from Stratum B. Which of the following best describes the resulting sample?
 a. Proportionate stratified sample
  b. Simple random sample
  c. Quota stratified sample
  d. Disproportionate stratified sample
  e. Homogeneous stratified sample

Question 2

One indication of homogeneity within strata is the
 a. size of the stratum's sample mean.
  b. size of the overall sample mean.
  c. number of elements within each stratum.
  d. weights used to calculate the overall variance of estimate.
  e. size of the standard error of estimate by stratum.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

parker125

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 29, 2018
Answer to Question 1

a

Answer to Question 2

E


asmith134

  • Member
  • Posts: 576
Reply 2 on: Jun 29, 2018
Great answer, keep it coming :)

kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

The mark-recapture technique is often used to estimate population size. The mark-recapture technique is often used to estimate population size.
During their annual migration, the entire population of Arctic terns move from the Arctic Ocean in t During their annual migration, the entire population of Arctic terns move from the Arctic Ocean in t
Stars vary widely in size. Stars vary widely in size.
Rural versus Urban Population, 1820–1860 Rural versus Urban Population, 1820–1860
World Population Growth World Population Growth
Types of Fold Strata Types of Fold Strata
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library