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

Author Question: Explain stratified sampling and state its advantages. What will be an ideal ... (Read 63 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
on: Jun 24, 2018
Explain stratified sampling and state its advantages.
 
  What will be an ideal response?

Question 2

What is the value of F?
 
  A) 484.67
  B) 727.00
  C) 246.33
  D) 198.83


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AmberC1996

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jun 24, 2018
Answer to Question 1

In stratified sampling, the N individuals or items in the population or frame are first subdivided into subgroups, or strata, each according to some common characteristic. A simple random sampling is conducted within each stratum, and the results from the separate simple random samples are combined. Such sampling methods are more efficient than simple random sampling because they include the representation of individuals or items across the entire population, which ensures a greater precision in the estimates of underlying population parameters. The homogeneity of individuals or items within each stratum provides the precision.

Answer to Question 2

D


LCritchfi

  • Member
  • Posts: 519
Reply 2 on: Jun 24, 2018
Gracias!

bbburns21

  • Member
  • Posts: 336
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Everyone has one nostril that is larger than the other.

Events of the postabsorptive state. Events of the postabsorptive state.
Abortion Rates by State, 2008 Abortion Rates by State, 2008
Every state has a two-letter abbreviation. Every state has a two-letter abbreviation.
Establishing a steady-state resting membrane potential. Establishing a steady-state resting membrane potential.
Effect of an Increase in R&D in the Follower Country on the Steady State Effect of an Increase in R&D in the Follower Country on the Steady State
Sample Size Affects Sampling Error Sample Size Affects Sampling Error
Video: Hydrogen bonds vs. Ionic bond

For a complete list of videos, visit our video library