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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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deroth deroth
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A year ago
Patrons at a local batting cage complain that a pitching machine set to throw 80 mph is throwing too slowly. A random sample of 29 pitches from the machine yields an average speed of 79.25 mph with a standard deviation of 4.22 mph. Perform a hypothesis test to see if the average speed of this machine is less than 80 mph. Select the appropriate critical value (CV), test statistic (TS), and decision, and listH0. (Useα= 0.01.)


▸

CV = –2.4671; TS = –0.96; fail to rejectH0t: the machine throws at less than 80 mph



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CV = –1.3125; TS = –0.82; fail to rejectH0: the machine throws at less than 80 mph



▸

CV = –2.2671; TS = –0.18; fail to rejectH0: the machine throws at less than 80 mph



▸

CV = –2.4671; TS = –0.96; fail to rejectH0: the machine throws at 80 mph

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
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apontea13apontea13
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A year ago
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deroth Author
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A year ago
Brilliant ツ
Starfiew
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Yesterday
Good timing, thanks!
MLynneMcMillan
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2 hours ago
Helped a lot
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