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Author Question: In order to improve the grades of students at UTC, several incentive programs have been introduced. ... (Read 57 times)

poopoo

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on: Mar 25, 2023

In order to improve the grades of students at UTC, several incentive programs have been introduced. Results of random samples of grades from after and before the incentive programs are given below.

 

 

After Incentives

Before incentives

Sample Size

14.00

12.00

Sample Mean

2.85

2.61

Sample Standard Deviation

0.40

0.35

Sample Mode

2.50

3.00


 

a.Give the hypotheses.
b.Compute the test statistic.
c.At a 0.1 level of significance, test to determine whether the incentive programs have significantly increased the average grades.

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

fowlerhop@rocketmail.com

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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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poopoo

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Reply 2 on: Mar 25, 2023
Gracias!

raenoj

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Reply 3 on: Yesterday
Excellent

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