Computers and Statistics Jack Lawhorn RiE Summer 2009. Average Length of Sharpnose Sharks. Sharpnose Shark. Average Length. Male. Female. Gender. Chi² Test. The Chi Square test is used to see if there are any significant differences between groups of data samples.
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The Chi Square test is used to see if there are any significant differences between groups of data samples.
Probability= the chance of an event occuring.
4 out of my __ coral polyps survived.
Variance= how close together a group of data is from the mean.
Standard Deviation= the square root of the variance.
Chi-square Value: 3.24 compared w/ 3.84 from Chi-square table at 1 DF.
Above: S= Survived///D= Died
Bellow: Overall Survival Rate 59.4% There was no significant difference but it was so close that it would be worth it to do the same experiment with hundreds or even thousands of samples.