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Author Question: To study the effect of soothing music on a persons blood pressure, two random groups of 220 adults ... (Read 76 times)

mmmmm

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on: Feb 26, 2023
To study the effect of soothing music on a person’s blood pressure, two random groups of 220 adults were drawn. One group (sample 1) listened to soothing music for 5 min prior to having their blood pressure taken, while the other group (sample 2) sat in silence. From previous studies, it was found that both populations have a standard deviation of 39.18. The average systolic blood pressure from the music group was 114.5. The average systolic blood pressure from the silence group was 122.8. Does the experiment support the conclusion that soothing music significantly lowers average systolic blood pressure better than silence? Select the correctp-value and decision and state the null hypothesis. Useα= 0.01.

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p-value = 0.0264; fail to rejectH0; The null hypothesis is that there is no significant difference between the two groups.


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p-value = 0.0264; rejectH0; The null hypothesis is that is a significant difference between the two groups.


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p-value = 0.0132; fail to rejectH0; The null hypothesis is that there is no significant difference between the two groups.


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p-value = 0.9736; fail to rejectH0; The null hypothesis is that there is a significant difference between the two groups.

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

ealonif

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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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mmmmm

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Reply 2 on: Feb 26, 2023
Wow, this really help

amit

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Reply 3 on: Yesterday
:D TYSM

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