This topic contains a solution. Click here to go to the answer

Author Question: What do the t-test and the ANOVA have in common? (Select all that apply.) a. They are both used ... (Read 63 times)

CBme

  • Hero Member
  • *****
  • Posts: 548
What do the t-test and the ANOVA have in common? (Select all that apply.)
 
  a. They are both used when the dependent variable is ordinal.
  b. They both assume a normal distribution.
  c. They both compare groups to decide if they are the same or different.
  d. They both can be used to compare two groups.
  e. They both require secondary post hoc analyses.
  f. They both use the same statistical tables for interpretation of results.
  g. They are both parametric analyses.

Question 2

Which of the following results would represent statistical significance, if the level of significance were set at .05 for each? (Select all that apply.)
 
  a. t = 8.43, p <.01
  b. X2 = 10.83, p <0.1
  c. F = 2.37, p <0.07
  d. r = 0.2, p = .23
  e. rs = .74, p = .049



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ju

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

ANS: B, C, D, G
The t-test and ANOVA are both parametric analyses; as such, they both assume a normal distribution and cannot be used when the dependent variable is ordinal. Both are used to compare groups, and both can actually be used when there are two groups, although for more than one only the ANOVA is used. If used with three or more categories, the ANOVA requires secondary post hoc analysis if its results are statistically significant. They use the t-test and F-test, respectively, and each has a separate table.

Answer to Question 2

ANS: A, E
The obtained result from the calculation of the statistic is compared with the appropriate table, at the level of significance set by the researcher at the outset of the study. If that is p <.05, it is essential that the correct value be retrieved from the table, for comparison. Researchers often set the level of significance at .05. By that criterion, the two statistically significant values above are p <.01 and p = .049.





 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

For a complete list of videos, visit our video library