. If you are running a t-test for dependent means on a group of 25 individuals, your degrees of freedom will be which of the following? a) 25 b) 26 c) 24 d) 12.5
If you are running a t-test for dependent means on a group of 25 individuals.
Sample size = n = 25
Degrees of freedom = n - 1 = 25 - 1 = 24
c) 24
. If you are running a t-test for dependent means on a group of 25 individuals,...
When you conduct a t test for independent means, ____. Group of answer choices you reject the null hypothesis if the t score is more extreme than the cutoff (criterion) t score you need to make sure that the medians of the two populations are equal you need to make sure that the two sample sizes are exactly the same you should only use an alpha level of .01 because of the lower power of this test compared to dependent-means...
You are running a t-test for means. You find a test statistic of -2.4. Your sample size is 7. Your alternative hypothesis is that the population mean is less than 0. What is a possible range of p-values for your test? - between 0.01 and 0.025 - between 0.025 and 0.05 - between 0.05 and 0.1 - between 0.1 and 0.25 - Greater than 0.5 You are running the same t-test as in question 1, but your alternative hypothesis is...
What is the dependent t-test score for these two group? Is there a sig. diff. between these two groups at alpha.05 (two-tailed) Alternative hypothesis (H1), degrees of freedom, T-crit, and interpretation of results (conclusion) *Determine the EFFECT SIZE* and give the intepretation. USE THE AVG. of the TWO STD. DEV Subjects Group 1 Group 2 2 2 10 What is the dependent t-test score for these two group? Is there a sig. diff. between these two groups at alpha.05 (two-tailed)...
You are running a t-test for means. You find a test statistic of -2.4. Your sample size is 7. Your alternative hypothesis is that the population mean is different from 0. What is a possible range of p-values for your test? between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.1 between 0.1 and 0.25 Greater than 0.5
16. In order to compare the means of two populations, independent random samples are selected from each population, with the following results. n 11, You are asked to use the pooled t-test to test 0.95, 0.049, 2 16, 20.61, s20.028 Find the observed value of the test statistic (a) 60.8873 with 25 degrees of freedom (b) t 85.0113 with 25 degrees of freedom. (c) 4.5499 with 25 degrees of freedom. (c) (d) None of the above.
(Chapter 7) You analyze the results of a study using a t-test for dependent means. There were 45 participants, each tested before and after. The t-score for your result was 2.89 which was significant at the .01 level. How would you report this result in a journal article (just give symbols--similar to depiction below)? Answer in terms of t(x)=2.89 p<0.1
Heart rates were measured in 2 groups of individuals. One group included individuals that had recently had heart attacks. The other group included normal individuals. A t-test was performed. The calculated t = 7.04. The critical t at 7 degrees of freedom was: 2.36. What is the conclusion? significant difference unknown until another t test is calculated no significant difference O unknown until a standard deviation is calculated
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.
If an independent-groups t test has seven participants in each group, then the degrees of freedom are a) 12 b) 7 c) 14 d) 6 If the null hypothesis is true, then the t test should be close to a) ±1.96 b) ±3.00 c) 0.00 d) ±1.65
1. Fill in the blank. In a one-sample t-test, we use the _________ to estimate the population standard deviation in order to calculate the standard error. How do you find the degrees of freedom (df) for a one-sample t-test? a. N b. Calculate the standard deviation of the sample c. n-2 d. n-1 Which of the following influences the likelihood of obtaining significant results? a. The larger your estimated standard error, the more likely it will be to get...