Author Question: The distribution of class ranks in a particular introductory statistics class is assumed to be 20% ... (Read 81 times)

heatherbabydoll1 · **on:** Feb 26, 2023

The distribution of class ranks in a particular introductory statistics class is assumed to be 20% freshmen, 40% sophomores, 35% juniors, and 5% seniors. To see if this is valid, a sample of 20 sections of this introductory statistics class is taken, and the frequency of each class rank is recorded. There are 130 freshmen, 242 sophomores, 221 juniors, and 37 seniors. The appropriate null hypothesis for a\(\style{font-family:Times New Roman;}{\chi^2}\)goodness-of-fit test would be:

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\(\style{font-family:Times New Roman;}{H_0:\;p_{fr}=0.20,\;p_{so}=0.40,\;p_{jr}=0.35,\;p_{sr}=0.05}\).

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\(\style{font-family:Times New Roman;}{H_0:\;p_{fr}=0.05,\;p_{so}=0.35,\;p_{jr}=0.40,\;p_{sr}=0.20}\).

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\(\style{font-family:Times New Roman;}{H_0:\;p_{fr}=130,\;p_{so}=242,\;p_{jr}=221,\;p_{sr}=37}\).

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\(\style{font-family:Times New Roman;}{H_0:\;p_{fr}=126,\;p_{so}=252,\;p_{jr}=220.5,\;p_{sr}=31.5}\).

gyvette · **Reply #1 on:** Feb 26, 2023

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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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