QMS 202 Study Guide - Final Guide: F-Test, Lincoln Near-Earth Asteroid Research, Null Hypothesis

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Ha: at least one j is not equal (j=1,2,3, ,k) *n refers to total sample size of all groups (n1+n2+n3+ . 1= slope of xi xi= independent variable from observation i. I=unexplained error, distance between actual observation, and line of best fit. Stat calc reg x ax+b or a+bx. Your calculator will also give you an output of r, r2, and. 0 < r2 < 1, is a percentage. Ex. r2=0. 9 means 90% of variability in data is explained by the regression model r2 = ssr/sst. E(y) = 0 + 1x1 + 2x2+ 3x3+ + kxk+ . 1= slope of x1, 2 =slope of x2, , k= slope of xk. K: regression table/ f test for linearity. *factor tells your calculator which group the data is coming from. Assumptions: normal distribution, equal variances, random and independent samples. Levene"s test can only be computed using spss. Compare p values to reject/not reject null hypothesis.

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