1.+Statistical+analysis

=**Lies, Damn Lies and Statistics**= = Statistical analysis and graphical displays often reveal patterns in seemingly random data enabling predictions to be made =


 * [[file:1. Statistics.pdf|Statistics Outline]]**
 * [[file:1.1 Statistical analysis Power Point.ppt|Statistics Power Point ]]**
 * [[file:Statistical Analysis Questions.docx|Statistical analysis practice Questions]]**
 * Formula for standard deviation: Formula for T-test:**

68% of all the data lies within 1sd of the mean 95% of all the data lies withn 2sd of the mean

P <0.05 then reject the Null hypothesis (data is significantly different) P > 0.05 then accept the Null hypothesis (data is not significantly differnet)


 * [[file:STD and TTests.docx|Standard deviation and T-test sample]]**