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 59 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
Thanks for the timely response, appreciate it

jackie

  • Member
  • Posts: 324
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Allen Test: A patent ulnar artery reveals the return of palm perfusion despite radial artery compres Allen Test: A patent ulnar artery reveals the return of palm perfusion despite radial artery compres
Starch iodine test for alpha amylase. Starch iodine test for alpha amylase.
One Minute Sit-up Test for Abdominal Muscle Strength and Endurance. One Minute Sit-up Test for Abdominal Muscle Strength and Endurance.
Cylinder Power Balance Test Cylinder Power Balance Test
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
A car wash reduced the price of a basic wash as a promotion and test of the market. With the ... A car wash reduced the price of a basic wash as a promotion and test of the market. With the ...
Video: DNA Replication

For a complete list of videos, visit our video library