7. For each of the following, indicate the appropriate hypothesis test (one-sample z-test,one-sample t-test, independent-measures t-test, or dependent-measures t-test). If yourresponse is dependent-measures t-test, indicate the "flavor" of the dependentmeasures t-test.a. A study measuring differences in attitudes about morality among Democrats andRepublicansb. A study testing whether night-shift workers sleep the recommended 8 hours perdayc. A researcher examines the effect of relaxation training on test anxiety. Onesample of subjects receives relaxation training for three weeks. A second sampleserves as a control group and does not receive the treatment. The researcherthen measures anxiety levels for both groups in the test taking situation.d. A different researcher also conducts a study involving relaxation training.Baseline levels of test anxiety are recorded for a sample of subjects. Then allsubjects receive relaxation training for 3 weeks and their anxiety levels aremeasured again.

Name: 7. For each of the following, indicate the appropriate hypothesis tes
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For each of the following, indicate the appropriate hypothesis test (one-sample z-test, one-sample t-test, independent-measures t-test, or dependent-measures t-test). If your response is dependent-measures t-test, indicate the "flavor" of the dependent measures t-test. a. A study measuring differences in attitudes about morality among Democrats and Republicans

For each of the following, indicate the appropriate hypothesis test (one-sample z-test, one-sample t-test, independent-measures t-test, or dependent-measures t-test). If your response is dependent-measures t-test, indicate the "flavor" of the dependent measures t-test. a. A study measuring differences in attitudes about morality among Democrats and Republicans

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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Which of the elements of a test of hypothesis can and should be specified prior to analyzing the data that are to be used to conduct the test?
Because 25 percent of the students in my morning statistics class watch eight or more hours of television a week, I conclude that 25 percent of all students at the university watch eight or more hours of television a week. The most important logical weakness of this conclusion would be? a. Relying on a sample instead of surveying every student b. Using a sample that may not be representative of all students c. Failing to correct for unconscious interviewer bias d assuming cause and effect where none exists
develop a research question that can be addressed with the dependent-samples t test, making sure to state the null and alternative hypotheses (in words)
: The Center for the Study of Violence wants to determine whether a conflict-resolution program in a particular high school alters aggressive behavior among its students. For 10 students, aggression was measured both before and after they participated in the conflict-resolution course. Students Before Participating After Participating 1 10 8 2 3 3 3 4 1 4 8 5 5 8 7 6 9 8 7 5 1 8 7 5 9 1 2 10 7 6 From performing a hypothesis test to determine if the aggression does not differ as a result of the participation in the program, what is the p-value?
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The owner of a professional basketball team claims that the mean attendance at games is over 27,000 people and therefore the team needs a new arena. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. a) two-tailed b) left-tailed (lower-tailed) c) right-tailed (upper-tailed)
Suppose that the P‐value in a hypothesis test is 0.08. If the significance level for the test is α=0.05, which of the following is the appropriate decision? Fail to reject H0H0. Reject H0H0. There is not enough information given to know whether or not H0H0 should be rejected.
Suppose the significance level of a certain hypothesis test is α = 2.5% and the p-value is equal to 0.0255.What is the correct conclusion?