Given the following information,calculate s_p²,the pooled sample variance that should be used in the pooled-variance t test. s₁² = 4 s₂² = 6
n₁ = 16 n₂ = 25

Question

Quizplus · Accepted Answer

The pooled sample variance ($s_p^2$) is calculated using the formula: $$s_p^2 = \frac{(n_1-1)s_1^2 + (n_2-1)s_2^2}{n_1 + n_2 - 2}$$ Substituting the given values: $$s_p^2 = \frac{(16-1)*4 + (25-1)*6}{16 + 25 - 2} = \frac{15*4 + 24*6}{39} = \frac{60 + 144}{39} = \frac{204}{39} = 5.23$$

Given the Following Information,calculate Sp2,the Pooled Sample Variance That Should

Given the Following Information,calculate S_p²,the Pooled Sample Variance That Should