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Sleepy Alert Anious Food Calm 5 6 4 5 3 2 3 2. 4 4 8 6 6 11 5 7 7 7 4 4 2 6 6 12 0 9 2 3 3 2 4 6 1 6 2 0 6 5 3 2 6 0 2 2. 3 4 13 4 12 2 9 9 0 3 4 NOTE: The moods calm, anxious, sleepy, and alert were rated on a 0-to 15-point scale: 0 not at all, 15 extremely a. Food type was coded 1 carbohydrate, 2 protein. What is the null hypothesis for an independent samples t test? 15. In what situations should the paired samples t test be used rather than 16. the independent samples t test? In what situations should the Wilcoxon rank sum test be used rather than the independent samples t test? What information does the F ratio on the SPSS output for an indepen- dent samples t test provide? That is, what assumption does it test? 17. 18. Explain briefly why there are two different versions of the t test on the SPSS printout and how you decide which one is more appropriate. 19. What is n? 20. Sleepy Alert Anious Food Calm 5 6 4 5 3 2 3 2. 4 4 8 6 6 11 5 7 7 7 4 4 2 6 6 12 0 9 2 3 3 2 4 6 1 6 2 0 6 5 3 2 6 0 2 2. 3 4 13 4 12 2 9 9 0 3 4 NOTE: The moods calm, anxious, sleepy, and alert were rated on a 0-to 15-point scale: 0 not at all, 15 extremely a. Food type was coded 1 carbohydrate, 2 protein. What is the null hypothesis for an independent samples t test? 15. In what situations should the paired samples t test be used rather than 16. the independent samples t test? In what situations should the Wilcoxon rank sum test be used rather than the independent samples t test? What information does the F ratio on the SPSS output for an indepen- dent samples t test provide? That is, what assumption does it test? 17. 18. Explain briefly why there are two different versions of the t test on the SPSS printout and how you decide which one is more appropriate. 19. What is n? 20.
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Quiz 15 What the null hypothesis is for and independent samples t test Independent samples ttest the null hypothesis is normally the test that the two ... View the full answer
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