User:Stixpjr

This is the user page for Paul Ripke (aka stix or stixpjr), who is a SRE and lives in Sydney and Wollongong, Australia. See his home page for more info.

testing equations
$$z = \frac{\overline{x_1}-\overline{x_2}}{s_{\overline{x_1}-\overline{x_2}}} = \frac{\overline{x_1}-\overline{x_2}} {\sqrt{\frac{s_1^2}{z_1} + \frac{s_2^2}{z_2}}} = \frac{3.1-3.15}{\sqrt{\frac{1.265^2}{204}+\frac{1.35^2}{196}}} = -0.382$$