Answered: Question 41 Based on the equation:…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question 41

Based on the equation: t₍₄₂₎= 5.15, p < 0.01, which of the following is correct?

Group of answer choices

A.group 1= 23; group 2= 23

B.group 1= 22; group 2= 22

C.group 1= 20; group 2= 20

D.group 1= 21; group 2= 21

Flag question: Question 42

The t test for independent means is used when looking at the difference in average scores of one or more variables between/within ______ group(s) that are ______ one another.

Group of answer choices

A.one, dependent on

B.one, independent of

C.two, independent of

D.two, dependent on

Flag question: Question 43

What is the simplest way to compute an effect size?

Group of answer choices

A.divide the difference between means by 2

B.add the difference between means and subtract 2

C.divide the difference between means by n-1

D.divide the difference between means by any one of the standard deviations

Flag question: Question 44

What does the number 5.15 represent in the following: t₍₄₂₎= 5.15, p < 0.01?

Group of answer choices

A.significance level

B.t value

C.degrees of freedom

D.test statistic

Flag question: Question 45

In order to determine whether to reject the null hypothesis, the test statistic must be compared against the ______.

Group of answer choices

A.significance level

B.obtained value

C.critical value

D.p value

Flag question: Question 46

If the obtained t value is 7.14, and the critical value is 6.10, what decision should be made?

Group of answer choices

A.accept the null hypothesis

B.rerun the analysis

C.use a one-tailed test

D.reject the null hypothesis

Flag question: Question 47

There is an important difference between a significant result and a meaningful result.

Group of answer choices

A.True

B.False

Flag question: Question 48

How many subjects were examined based on the following: t₍₂₉₎ = 2.001, p < 0.05?

Group of answer choices

A.28

B.29

C.30

D.31

Flag question: Question 49

Dr. Dean would like to find out if there was a significant difference between her patients’ anxiety scores before and after they completed a meditation program. What is the appropriate test to run?

Group of answer choices

A.factorial ANOVA

B.Pearson’s correlation

C.dependent-samples t test

D.independent-samples t test

Flag question: Question 50

You run a t-test and find that your results indicate that t₍₃₈₎ = 4.15, p < 0.05. What is your decision?

Group of answer choices

A.reject the research hypothesis

B.ignore the null hypothesis

C.reject the null hypothesis

D.accept the null hypothesis

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