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Author Question: Patrons at a local batting cage complain that a pitching machine set to throw 80 mph is throwing too ... (Read 137 times)

jordangardner

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on: Feb 26, 2023
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.)

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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


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


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

Introductory Statistics: A Problem-Solving Approach ¦ Kokoska ¦ 3rd Edition
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Marked as best answer by jordangardner on Feb 26, 2023

hiyayyay

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Reply #1 on: Feb 26, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jordangardner

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Reply 2 on: Feb 26, 2023
Gracias!

mcarey591

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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