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(John Teke) Quiz 3 7 6. Why is Ho: 53 = if: not aproper null hypotheSIS. s not the statistics. ' n arameter It
(John Teke) Quiz 3 7 6. Why is "Ho: 53 = if: " not aproper null hypotheSIS. s not the statistics. ' n arameter It should be stated in terms of the populatlo P 45 hours per week, on average, on the . t 7. Prewously, an organization reported that teenagers spen . ' ' hosen phone. The organization thinks that, currently, the mean IS higher. Fifteen randomly c teenagers were asked how many hours per week they spend on the Phone The Samplfi nr?" Vilas 4.75 hours with a sample standard deviation of 2.0. In conductlng a hYPOtheSIS "test t '3 ype error is (circle the correct answer): . . . a) to conclude that the current mean hours per week is higher than 4.5, When In fact, lt 15 hlgher b) to conclude that the current mean hours per week is higher than 4.5, when in fact, it is the same i c) to conclude that the mean hours per week currently is 4.5, when in fact, it is higher d) to conclude that the mean hours per week currently is no higher than 4.5, when in fact, it is not higher ' a. Ho: f =4.5,Ha: f >4.5 b. Ho: "245, Ha; u <4.5 0. Ho: u =475, Ha: u > 4.75 d.H0:u=4.5Ha: u>45
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