modules:52954
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modules:52954 [2020/06/20 14:39] – external edit 127.0.0.1 | modules:52954 [2020/06/21 14:06] (current) – [Calculating the t-statistic] gerhard | ||
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Note that we are using the calculations for two samples, with equal variances, and possibly different sample sizes. | Note that we are using the calculations for two samples, with equal variances, and possibly different sample sizes. | ||
+ | <WRAP hide> | ||
$$ {\displaystyle t={\frac {{\bar {X}}_{1}-{\bar {X}}_{2}}{s_{p}\cdot {\sqrt {{\frac {1}{n_{1}}}+{\frac {1}{n_{2}}}}}}}} $$ | $$ {\displaystyle t={\frac {{\bar {X}}_{1}-{\bar {X}}_{2}}{s_{p}\cdot {\sqrt {{\frac {1}{n_{1}}}+{\frac {1}{n_{2}}}}}}}} $$ | ||
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$$ {\displaystyle s^{2}={\frac {1}{n-1}}\sum _{i=1}^{n}\left(Y_{i}-{\overline {Y}}\right)^{2}} $$ | $$ {\displaystyle s^{2}={\frac {1}{n-1}}\sum _{i=1}^{n}\left(Y_{i}-{\overline {Y}}\right)^{2}} $$ | ||
+ | </ | ||
+ | {{: | ||
+ | |||
+ | **Note:** The latex code is hidden above the image, view in edit mode. | ||
<code python> | <code python> |
modules/52954.1592663981.txt.gz · Last modified: 2020/06/20 14:39 by 127.0.0.1