QMS 202 Study Guide - Quiz Guide: Analysis Of Variance

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Proportions: the distribution is approximately normal if the sample size is large, with standard p p p (1 n. Xp n number in of category sample interest size in sample p az. Upper and lower confidence limits for the population proportion are calculated with the. Best way w c-9750: intr(f4):z(f1):1-p(f3):data(var):c-level(. 95): p - (1 p. Note: with 1-s the c-9750 does not take the standard error. The calculator accepts n and will automatically provide the interval. X 5 and n x . Hypothesis tests for proportions the sampling distribution of p is approximately normal, so the test statistic is a zstat value: Compare the resulting t & p tests to critical values. When the means and standard deviations are given. X1=enter; sx1=enter; n1=enter x2= enter; sx2= enter; n2=72 pooled :on. If 0 is within the interval, accept that u1=u2. If 0 is outside the interval, reject that u1=u2 and accept u1 u2.