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× y Apla: Student Question × G Chegg.com ursesapia.com/at/servlet/quiz?qur_actiontakeQuiz&quz;_probGund = 101 Assignment #9-Introduction to Hypothesis Testing Graded Assignment l Due Tuesday 10.31.17 at 114 Attempts: Score: 1S &.Chapter 1O, Problem 5 Under what conditions is it legitimate to use a directional Hi? Check all that apply when there is sound theoretical basis for expecting results in a particular direction when the data turn out to indicate an effect in the opposite direction when there is no practical difference between no effect and an effect in the opposite direction When Ho will be retained if the results indicate an effect in the opposite direction Why is it not legitimate to use a directional Hi just because the experimenter has a "hunch about the direction? O This practice violates the decision rule, which is not fair to competing researchers. O This practice increases the cost of the experiment This practice increases the risk of Type II error. O This practice increases the risk of Type I error Graded ViewSonic K120 End Po Delete Enter

Explanation / Answer

1.Under what conditions is it legitimate to use a directional H1 ?

Answer:- When there is sound theoretical basis for expecting results in a particular direction.

2.Why is it not legitimate to use a directional H1 just because the experimenter has a "hunch" about the direction?

Answer:- This practice violates the decision rule, which is not fair to competing researchers.

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