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Author Question: Can stretching help you stay alert in class? Thirty-six subjects were measured for alertness at the ... (Read 129 times)

Bernana

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on: Apr 14, 2020
Can stretching help you stay alert in class? Thirty-six subjects were measured for alertness at the beginning of class; the subjects then participated in some light arm and neck stretches followed by a forty-five minute lecture. Each subject was then measured for alertness at the end of the lecture. The hypothesis test results for the sign test are summarized below. Assume that all conditions for testing have been met:


Choose the correct null and alternative hypothesis.
◦ H0: The median difference in alertness is not 0.
HA: The median difference in alertness is 0.
◦ H0: The median difference in alertness is 0.
HA: The median difference in alertness is not 0.
◦ H0: The median difference in alertness is 1.
HA: The median difference in alertness is not 1.
◦ None of these.
Introductory Statistics: Exploring the World Through Data ¦ Gould, Ryan ¦ 2nd Edition
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Marked as best answer by Bernana on Apr 14, 2020

sultana.d

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Reply #1 on: Apr 14, 2020
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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Bernana

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Reply 2 on: Apr 14, 2020
Wow, this really help

pangili4

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Reply 3 on: Yesterday
Excellent

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