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Author Question: A sample of 150 individuals (males and females) was surveyed, and the individuals were asked to ... (Read 28 times)

redpassion

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on: Mar 25, 2023

Question 1

A poll was taken this year asking college students if they considered themselves overweight.   A similar poll was taken five years ago. Results are summarized below.  Has the proportion increased significantly?  Let α = 0.05.

 

Sample Size

Number Considered Themselves Overweight

Present Sample

300

150

Previous sample

275

121



Question 2

A sample of 150 individuals (males and females) was surveyed, and the individuals were asked to indicate their yearly incomes. Their incomes were categorized as follows.

Category 1$20,000up to$40,000
Category 2$40,000up to$60,000
Category 3$60,000up to$80,000


The results of the survey are shown below.

Income Category

Male

Female

Category 1

10

30

Category 2

35

15

Category 3

15

45


We want to determine if yearly income is independent of gender.

a.Compute the test statistic.
b.Using the p-value approach, test to determine if yearly income is independent of gender.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
Buy Test-Bank


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Marked as best answer by redpassion on Mar 25, 2023

dude123

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Reply #1 on: Mar 25, 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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Only 25% of students answer this correctly


redpassion

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Reply 2 on: Mar 25, 2023
Great answer, keep it coming :)

bdobbins

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Reply 3 on: Yesterday
Wow, this really help

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