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

Author Question: What is it called when a researcher compares secondary data from one source with data from another? ... (Read 36 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Jun 29, 2018
What is it called when a researcher compares secondary data from one source with data from another?
 a. data conversion
  b. cross-check
  c. data mining
  d. data enhancement

Question 2

If done correctly, stratified sampling can actually decrease the standard error of the estimator by
 a. making sure the strata are more homogeneous on the variables for which statistics will be calculated
  b. making sure each strata forms a representative sample of the population
  c. decreasing the number of categories within each of the variables for which statistics will be calculated
  d. making sure the sample is sufficiently large to ensure a lower sampling error


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bobsmith

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jun 29, 2018
Answer to Question 1

B

Answer to Question 2

A
If the strata are more homogeneous than a simple random sample, the standard error of the estimator will be less.


jessicacav

  • Member
  • Posts: 558
Reply 2 on: Jun 29, 2018
Great answer, keep it coming :)

atrochim

  • Member
  • Posts: 331
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Extent of agricultural activity across the planet (data from Foley et al. 2005). Extent of agricultural activity across the planet (data from Foley et al. 2005).
Cover heat source to slow cooling by placing a towel over it. Cover heat source to slow cooling by placing a towel over it.
Remove cold source, and check the knee for changes. Notice skin color and changes in swelling around ... Remove cold source, and check the knee for changes. Notice skin color and changes in swelling around ...
A mobile weather station that can be used to gather current weather data at the scene of hazardous ... A mobile weather station that can be used to gather current weather data at the scene of hazardous ...
Nuts are also a good source of B group vitamins (including folate), and vitamin E Nuts are also a good source of B group vitamins (including folate), and vitamin E
Dried fruits are good source of sulfur Dried fruits are good source of sulfur
Video: Structures that affect circulation - kidneys and blood volume and skeletal muscle pumping

For a complete list of videos, visit our video library