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Author Question: To test the effects of acid rain on the growth of white pine trees, a conservationist measures the ... (Read 73 times)

Deej

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on: Feb 26, 2023

Question 1

The selection of the null and alternative hypotheses always follows what the experimenter expects or wants to see.

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True


◦

False



Question 2

To test the effects of acid rain on the growth of white pine trees, a conservationist measures the diameter (in centimeters) of 200 white pines in the Allegheny National Forest in northwest Pennsylvania. The average diameter of the sampled trees is 23.42 cm. Does the sample provide sufficient evidence to conclude that the current mean diameter of the white pines is less than that recorded 50 years ago (μ= 24.8) if the standard deviation is 6 cm? Calculate thep-value and make an appropriate decision. (Useα= 0.05).

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p-value = 0.9994; fail to rejectH0


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p-value = 0.0006; rejectH0


◦

p-value = 0.0006; fail to rejectH0


◦

p-value = 0.9994; rejectH0

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

jojomac20

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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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Deej

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

mohan

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Reply 3 on: Yesterday
Excellent

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