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 50 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
:D TYSM

carlsona147

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Coagulase Test Coagulase Test
Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo
Performing a Urine Pregnancy Test Using the Enzyme Immunoassay Method Performing a Urine Pregnancy Test Using the Enzyme Immunoassay Method
Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ... Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ...
Student Test Scores versus GDP per Capita Student Test Scores versus GDP per Capita
Correlations between scores on a psychology test and number of boiled kumquats eaten per month Correlations between scores on a psychology test and number of boiled kumquats eaten per month
Video: Fermentation - When Oxygen Is Absent, Pyruvate to Lactate & Pyruvate to Ethanol

For a complete list of videos, visit our video library