QMS 202 Lecture 7: Lecture 7 (week 9)
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Means for groups in homogeneous subsets are displayed. a uses harmonic mean sample size = 12. 000. * the mean difference is significant at the . 05 level. Chi-square tests: goodness-of-fit tests, contingency analysis, 2 x 2 contingency table, 2 x c contingency table: chi-square test for the differences among more than. 3. r x c contingency table: chi-square test of independence www. notesolution. com. The statistical procedures introduced in the earlier classes require that the sample data come from populations that are normally distributed. t i d t h l d t. Gof test is used to help determine whether the sample data fit the specified distribution or hypothesized distribution. i. Company a has recently conducted aggressive advertising campaigns to maintain and possibly increase its share of the market for fabric softener. Company b, has 40% of the market and a number of other competitors account for the remaining 15%.