19. -/1 points PODStat5 11.TB.104. My Notes Ask Your Teacher O If all other fact

Question

19. -/1 points PODStat5 11.TB.104. My Notes Ask Your Teacher O If all other factors are held constant, an increase in the variance of the D scores will increase the likelihood of finding a significant treatment effect. True False 20- -/1 points PODStat5 11.TB.084. My Notes Ask Your Teacher If the null hypothesis is true, on average the expected value for the related-samples t statistic is the following t > 1.96 10 1.96 21. +-/1 points PODStat5 12.TB.045 My Notes Ask Your Teach For either chi-square test, the sum of the expected frequencies must be equal to the sum of the observed frequencies. True False

Explanation / Answer

19. True

As variance in d score increases, this means difference between each pair is different from one another, so there is a significant treatment effect.

20. Answer is 0.

The null hypothesis is : the mean difference is zero

So under null hypothesis the t statistic is expected to have value 0.

21. True

In chi square test the expected frequencies are calculated based on the distribution of null hypothesis and total observed frequency

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