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Which of the following scenarios is best analysed by a paired samples t test?
What assumptions must not be violated in order to conduct a paired samples t test.
(mark all that apply)
What was the difference between the average score of the control trial and the average score of the experimental trial?
Read this output table. How many pairs of scores were there in this sample?
What statistical test would you use in this scenario?
You want to discover if students at your university feel more, less or similar levels of life satisfaction than the national average.
What assumptions must be met in order to use a one sample t test to analyse data
Is there a statistically significant difference between the scarves sold and the test statistic?
How many participants were in this sample?
Which of these scenarios could be analysed using an independent samples t test?
Which assumptions must not be violated in order to perform an independent samples t test?
(Mark all that apply)
Read the APA write-up below. How many participants were in this experiment?
The t test was statistically significant with the “alcohol” group (M = 9.6, SD = 3,4) recalling 7.3 words less 95% CI [-8.9, -5.4] than the “no alcohol” group (M = 16.9, SD = 2.2), t(28) = -5.77, p < .001, two-tailed.
This table reports the results of an independent samples t test. What p value should the researcher report?
p =