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
False
The independent samples t-test is a test that only for compares two groups not for more than two.
A two–independent sample t-test is computed when mean differences are compared between two or more groups...
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...
A researcher conducts a study in which the population variance of difference scores between two groups is unknown. What type of t-test is most appropriate for this study? Question 6 options: one–independent sample t-test two–independent sample t-test related samples t-test There is not enough information to answer this question.
QUESTION 11 You run an independent samples t-test between two groups, and find a t-statistic of t=1.67. Is this sufficient to reject the null hypothesis? Assume α=0.05 and a one-sided test. Yes, > 1.67 is sufficient to reject the null. No, > 1.67 is not sufficient to reject the null. Not enough information. 2 points QUESTION 12 In a dependent samples t-test, the sample sizes must be equal. True False 2 points QUESTION 13 In an independent samples...
Compare and contrast the differences between a single sample t test and an independent samples t test. Next describe a hypothetical study using the design of an independent samples t test. List the two groups that you would test.
A one-way between-subjects ANOVA is conducted to test for mean differences between the levels of two or more factors. Question 18 options: True False
Question 1 (1 point) When we compute an independent-samples t-test, we are looking to see if there are significant differences between the means of two independent groups, each measured on a different level of the independent variable. al True b) False Question 2 (2 points) When we compute a paired-samples &-test, we are looking to see if there are significant differences between the means of two independent groups, each measured on a different level of the independent variable. a) True...
To An independent-measures t hypothesis test is appropriate when the value for a is known a. b. the mean for a treated group of subjects is compared to a known population mean C. one sample is used to test a hypothesis about one population P there are two separate samples containing different subjects 17. One sample of n 5 scores has a variance of s 10 and a second sample of n= 10 scores has s pooled variance is computed...
When the standard deviations are equal but unknown, a test for the differences between two population means has n − 1 degrees of freedom. True or False?
When the standard deviations are equal but unknown, a test for the differences between two population means has n − 1 degrees of freedom. 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...