appendice 002

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Pre-test

post-test

 

post-test

Post-test

Mean

8.944444

13

Mean

14.11111

13

Variance

3.46732

4.823529

Variance

3.398693

4.823529412

Observations

18

18

Observations

18

18

Pearson Correlation

0.316442

Pearson Correlation

0.392262

Hypothesized Mean Difference

0

Hypothesized Mean Difference

0

df

17

df

17

t Stat

-7.20526

t Stat

2.098606

P(T<=t) one-tail

7.36E-07

P(T<=t) one-tail

0.025549

t Critical one-tail

1.739607

t Critical one-tail

1.739607

P(T<=t) two-tail

1.47E-06

P(T<=t) two-tail

0.051098

t Critical two-tail

2.109816

 

t Critical two-tail

2.109816

 

T-test for two sample means



160