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 27 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
YES! Correct, THANKS for helping me on my review

mjenn52

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

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

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Obturator Muscle Test Obturator Muscle Test
Performing a Glycosylated Hemoglobin A1C Test Using a Bayer DCA Vantage Analyzer Performing a Glycosylated Hemoglobin A1C Test Using a Bayer DCA Vantage Analyzer
Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter. Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter.
Cylinder Power Balance Test Cylinder Power Balance Test
Polygraph Test Polygraph Test
Mutagenicity of aflatoxin B1 determined by the Ames test Mutagenicity of aflatoxin B1 determined by the Ames test
Video: Chemical Messengers Animation

For a complete list of videos, visit our video library