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Calculate the effect size using Cohen's d. This info may be helpful. The test statistic, t obt =10.35 Explanation: Data. Sample size, N=30 Mean, =3.4

Calculate the effect size using Cohen's d.

This info may be helpful.

The test statistic, tobt=10.35

Explanation:

Data.

Sample size, N=30

Mean, =3.4

SD= 1.8

Standard error of score difference, SE

=SD/N

=1.8/30

=0.328633534

Test statistic, tobt

=/SE

=3.4/0.328633534

=10.34587053

=10.35

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