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Notes 8-2 Comparing Two Proportions
... If 15 ≤ n1 + n2 < 30, use except in presence of outliers If n1 + n2 30, sample is large enough to use regardless of outliers or skewness by CLT Pooled Two-Sample t Procedures: We do not pool t-tests. Pooling assuming equal σ values. Since σ1 and σ2 are both unknown, why would we assume they are eq ...
... If 15 ≤ n1 + n2 < 30, use except in presence of outliers If n1 + n2 30, sample is large enough to use regardless of outliers or skewness by CLT Pooled Two-Sample t Procedures: We do not pool t-tests. Pooling assuming equal σ values. Since σ1 and σ2 are both unknown, why would we assume they are eq ...
§9.3--Hypothesis Tests for One Population Mean When is Known
... tests for one population mean. In these tests, we will consider only one population. In each case we will testing whether the true mean µ of the population is equal to a hypothesized mean µ0 . Thus the null hypothesis will always be of the form H0 : µ = µ0 . The alternative hypothesis will be of one ...
... tests for one population mean. In these tests, we will consider only one population. In each case we will testing whether the true mean µ of the population is equal to a hypothesized mean µ0 . Thus the null hypothesis will always be of the form H0 : µ = µ0 . The alternative hypothesis will be of one ...
FINAL Fall 2012 Venable Statistics NAME_____________ Please
... information about the number of patients who were cured and not cured by each of the two drugs. Drug I Drug II ...
... information about the number of patients who were cured and not cured by each of the two drugs. Drug I Drug II ...