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 50 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
YES! Correct, THANKS for helping me on my review

frankwu0507

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Species richness decreases with distance from the source pool. Species richness decreases with distance from the source pool.
In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity
General location of the primary auditory cortex and areas of secondary auditory cortex. Most ... General location of the primary auditory cortex and areas of secondary auditory cortex. Most ...
How to calculate the mean for grouped data How to calculate the mean for grouped data
Because vitamin A is stored in the liver, chicken liver is a potent source of this vitamin Because vitamin A is stored in the liver, chicken liver is a potent source of this vitamin
Avocados are a good source of pantothenic acid, dietary fiber, vitamin K Avocados are a good source of pantothenic acid, dietary fiber, vitamin K
Video: Chromosome structural organization/ Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library