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Author Question: In order to improve the grades of students at UTC, several incentive programs have been introduced. ... (Read 52 times)

poopoo

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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.



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Marked as best answer by poopoo on Mar 25, 2023

fowlerhop@rocketmail.com

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poopoo

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Reply 2 on: Mar 25, 2023
Wow, this really help


deja

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Reply 3 on: Yesterday
:D TYSM

 

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