An analysis of variance differs from attest for independent meansin an analysis

Question

An analysis of variance differs from attest for independent meansin an analysis variance 24 that of A) includes computation of group variances as part of the analysis, while attest doesnot no these computations. B is conducted before the experiment, while attest for independent meansiscond the experiment. conducted after C is usually used to comparetwogroups can be used to while attest for independent means compare two or more groups. D) can be used to compare three or more groups while attest for independent means cannot be used to compare more than two groups 5) Analysis of variance should be conducted only when A) sample sizes are greater than 30 per group. B population sizes are approximately equal. C) sample sizes are smaller than 30 per group. D) population variances can be assumed to be equal. A) a comparison of participants scores on a skills test before and after attending a training session intended to improve the skill learn the words in alphabetical order and another group is assigned to read the wordsin order of length of the word preparation course oompared to the scores of students in general on the SAT D) None of the situations above issuitable for attest for independent means.

Explanation / Answer

Solution:-

24) D) can be used to compare three or more groups , while a t test for independent means cannot be used to compare more than 2 groups.

25) D) Population variance can be assumed to be equal.

26) B) A comparison of scores of participants in a memory study in which one group is assigned to learn the words in alphabetical orderand another group is assigned to read the words in order of length of th eword.

29) A) F( 3, 50) = 4.33, p < 0.01

Df1 = 3

Df2 = 50

F = 4.33

P(F > 4.33) = 0.009

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