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QSearch in Document Review View Share ^ Insert Desi Times New Ne SoacingHeading 1Heading?Styles Pane Narmal sample i.inst s/1669399/quizzes/2350248/take Quiz: Final Exam D Question 27 1 pts As a general rule, running multiple t-tests in a single research study is bad practice and if we see it in research articles we read we should seriously question the results and/or claims to knowledge offered by the authors True False | Question 28 1 pts If you run multiple t-tests in a single study, what kind of error rate is inflated? (ANSWER] Type I error 1 pts Question 29 The assumptions for t-tests that are ab to be tested mathematically are: effect size normal distribution band c all of the above

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dear student please post the question one at a time

29) option D is right

The first assumption made regarding t-tests concerns the scale of measurement. The assumption for a t-test is that the scale of measurement applied to the data collected follows a continuous or ordinal scale, such as the scores for an IQ test.

The second assumption made is that of a simple random sample, that the data is collected from a representative, randomly selected portion of the total population.

The third assumption is that the data, when plotted, results in a normal distribution, bell-shaped distribution curve.

The fourth assumption is that a reasonably large sample size is used. A larger sample size means that the distribution of results should approach a normal bell-shaped curve.

The final assumption is homogeneity of variance. Homogeneous, or equal, variance exists when the standard deviations of samples are approximately equal.

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