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 60 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
Thanks for the timely response, appreciate it

bbburns21

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Each experimental organism used in cell biology has advantages for certain types Each experimental organism used in cell biology has advantages for certain types
This map shows the percentage of Protestants by state in Germany. When compared to the previous map This map shows the percentage of Protestants by state in Germany. When compared to the previous map
A pharmacist can explain to a patient why medication may look different and ensure the correct ... A pharmacist can explain to a patient why medication may look different and ensure the correct ...
Fixed bed state (i) and complete fluidization (ii) Fixed bed state (i) and complete fluidization (ii)
Routes of Drug Administration: Advantages and Disadvantages Routes of Drug Administration: Advantages and Disadvantages
Please explain the different Rf values for xanthophyll’s in paper chromatography compared to ... Please explain the different Rf values for xanthophyll’s in paper chromatography compared to ...
Video: Vascular tissues in a corn stem and a buttercup root

For a complete list of videos, visit our video library