For difference between two mean we use t test
If we from the mean between more than two ,then we use ANOVA .
Therefore finding the comparing difference between groups we use t test ANOVA.
Ans : t test or ANOVA
When comparing differences between groups, which of the following is the appropriate test? a. t test...
Which of the following is the appropriate test of significance when we have a single value we want to compare to a population mean? a. Spearman's Rho b. Bonferroni c. z score d. Cramer's Phi
a. Which test is most appropriate for comparing two or more independent variables? A. Repeated measures ANOVA B. Factorial ANOVA C. One Way ANOVA D. Independent samples t test b. Which test is most appropriate for comparing three or more independent means? A. Repeated measures ANOVA B. One Way ANOVA C. Independent Samples t test D. Factorial ANOVA c.Which test is most appropriate for comparing three or more paired means? A. One Way ANOVA B. Dependent samples t test C....
1. When running an ANOVA test, you observe large differences in means between groups. Within the ANOVA framework, this would most likely be interpreted as: A. Evidence strongly favoring the alternative hypothesis. B. Evidence strongly favoring the null hypothesis. C. Evidence revealing which group mean is different from the others. D. None of the above.
1. When do we use an independent groups t-test? a. b. c. d. When we are comparing means from one sample that has been measured twice. When we are comparing means from two different samples. When we are comparing a sample mean to a population mean. When we are comparing two population means. 2. Which of the following is true regarding the use of t-tests for true experiments versus quasi-experimental designs? a. b. We use the same t-test whether it...
6. Typically, when comparing a within-subjects design to a between-groups design which of the following describe their differences in error variance? a. Within-subjects designs results in less error variance than between-groups. b. A within-subjects design results in more error variance than a between-groups design. C. A within-subjects design results in the same amount of error variance as a between-groups design d. There is no error variance in a within-subjects design, whereas a between- groups design does present some error variance....
An ANOVA comparing two groups is equivalent to an independent samples t-test. True False
Which of the following is an appropriate test to compare a sample mean with a population mean when the actual population mean is unknown (i.e., we only have sample data)? a. Variance b. Pearson's Correlation c. Post hoc d. t test
44. The test used to test the statistical significance of a difference between the means of 2 groups on a variable is a(an) __________ while a(an) __________ is used to test mean group differences in 3 or more groups. A. Chi square; ANOVA B. ANOVA; t-test C. Chi square; t-test D. t-test; ANOVA
A two–independent sample t-test is computed when mean differences are compared between two or more groups sampled from a population with an unknown variance. Question 2 options: True or False
11. What is the null hypothesis for a t-test for two independent groups? a. If mul and mu2 are the population means of the two groups, then the null hypothesis is Ho: mul-mu2=0. b. If sl and s2 are the population standard deviations of the two groups, then the null hypothesis is Ho: sl-s2=0. 12. Differentiate between a data set that should be analyzed using a paired t-test from a data set that should be analyzed using a t-test for...