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Author Question: The following information regarding the yearly salaries (in $1,000) of CEOs in 2010 and 2009 are ... (Read 41 times)

dhsndn

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on: Mar 25, 2023

Question 1

The following information regarding the number of semester hours taken from random samples of day and evening students is provided.

 

 

Day

Evening

16

12

s

4

2

n

140

160


Develop a 95% confidence interval estimate for the difference between the mean semester hours taken by the two groups of students.



Question 2

The following information regarding the yearly salaries (in $1,000) of CEO’s in 2010 and 2009 are provided.
 

 

Year 2010

Year 2009

Sample size

190

145

Sample Mean

560

540

Population Standard Deviation

80

90


 

a.At 95% confidence, perform a test to determine if there has been a significant increase in the salaries of CEO’s. Use the Critical Value Approach.
b.Compute the p-value.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by dhsndn on Mar 25, 2023

sadoniam

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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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dhsndn

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

jackie

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Reply 3 on: Yesterday
Excellent

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