BIOL 243 Lecture Notes - Lecture 9: Chi-Squared Distribution, Marginal Distribution, Type I And Type Ii Errors
18 Nov 2016
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Lecture 9 (module 8) chi-square, correlation & regression. When talked about chi square and analyses, this is the only test where we can deal with the responses from our test that are categorical. (evaluate the difference in the categorical responses) (cid:2870)= (cid:4666) (cid:4667)^2. Start by calculating the marginal distributions: marginal distributions. 214 (trying to figure out expected for this) ** is that marginal distribution of the row. Expected = (0. 4495x0. 5) 1030 = 231. 5: we expect 231 people to living in an urban environment w no allergies. H0: observed frequency is not different from expected. From the chi squre value and find out type 1 error. Draw it out each time like a t test. Bc the p value is greater than the alpha. Does the type of practice in the land use dependent or not depend on the. Linear regression assumes the ship b/w x and y is a straight line (y=mx+b: using your x to predict you y.
