# Question

Review Question 2.16 on page 54 lists the GPAs for groups of 27 meditators and 27 non-meditators.

(a) Given that the mean GPA equals 3.19 for the meditators and 2.90 for the non- meditators, and that s 2 p equals .20, specify the observed value of t and its approximate p - value.

(b) Answer the original question about whether these two groups tend to differ.

(c) If the p - value is less than .05, use Cohen’s d to estimate the effect size.

(a) Given that the mean GPA equals 3.19 for the meditators and 2.90 for the non- meditators, and that s 2 p equals .20, specify the observed value of t and its approximate p - value.

(b) Answer the original question about whether these two groups tend to differ.

(c) If the p - value is less than .05, use Cohen’s d to estimate the effect size.

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