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

Author Question: What is a t test, when is it used, and what does it tell us? What will be an ideal ... (Read 52 times)

CORALGRILL2014

  • Hero Member
  • *****
  • Posts: 525
on: Jun 19, 2018
What is a t test, when is it used, and what does it tell us?
 
  What will be an ideal response?

Question 2

If each person in a large group has an equal chance of being included in an experiment, then the researcher is using ____ sampling.
 
  a. systematic
 b. random
 c. convenience
  d. cluster


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tuwy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 19, 2018
Answer to Question 1

A t test is a parametric inferential statistical test of the null hypothesis for a single sample where the population variance is not known. It is used for samples of 30 or less, when the distribution is bell-shaped but not normal, and the data are interval or ratio. It tells us whether a sample mean differs significantly from a population mean.

Answer to Question 2

b


CORALGRILL2014

  • Member
  • Posts: 525
Reply 2 on: Jun 19, 2018
Great answer, keep it coming :)

covalentbond

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

« previous next »
 

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Rinne Test, Assessing Bone Conduction Rinne Test, Assessing Bone Conduction
Allen Test: An occluded ulnar artery results in continued pallor of the hand while the radial artery Allen Test: An occluded ulnar artery results in continued pallor of the hand while the radial artery
Babinski Reflex Test Babinski Reflex Test
Touch the test light to the negative (–) terminal of the battery or a good engine ground to check ... Touch the test light to the negative (–) terminal of the battery or a good engine ground to check ...
The 10 Steps to Better Test-Taking The 10 Steps to Better Test-Taking
Normal and abnormal corneal light reflection test Normal and abnormal corneal light reflection test
Video: Negative Feedback Regulation of Blood Pressure

For a complete list of videos, visit our video library