Given the Following Information, Calculate Sp2, the Pooled Sample Variance $$\begin{array} { l l } s _ { 1 } { } ^ { 2 } = 4 & s _ { 2 } { } ^ { 2 } = 6 \\n _ { 1 } = 16 & n _ { 2 } = 25\end{array}$$

question 172

Short Answer

Given the following information, calculate sp2, the pooled sample variance that should be used in the pooled-variance t test. $$\begin{array} { l l } s _ { 1 } { } ^ { 2 } = 4 & s _ { 2 } { } ^ { 2 } = 6 \\n _ { 1 } = 16 & n _ { 2 } = 25\end{array}$$
a) $s _ { p } ^ { 2 } = 6.00$
b) $s _ { p } ^ { 2 } = 5.00$
c) $s _ { \mathrm { p } } ^ { 2 } = 5.23$
d) $s _ { \mathrm { p } } { } ^ { 2 } = 4.00$

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