A marriage counselor notices that first marriages seem to last longer than remarriages. To see if this is true, she selects samples of divorced couples from first, second, and third marriages and determines the number of years each couple was married before getting divorced. Test the null hypothesis that first, second, and third marriages do not differ by marriage length before divorce.
Answer to relevant QuestionsOn the following random samples of social class, test the null hypothesis that neighborliness does not vary by social class. 1. Which is not true of parametric tests? a. They require interval data. b. They require normality in the population. c. They are less powerful than nonparametric tests. d. None of the above. 2. In a chi-square test, the ...The following is a 2 × 2 cross-tabulation of preference for slasher films such as Halloween or Friday the 13th by gender of respondent. Applying Yates’s correction, conduct a chisquare test of significance. Conduct chi-square tests of significance for the choice of murder weapon by gender of offender cross-tabulations shown in Tables 9.5 and 9.6. What is the effect of collapsing categories? A psychiatrist is concerned about his daughter, who has suffered from extremely low self esteem and high anxiety since entering high school last year. Wondering if many of his daughter’s peers have the same troubles, he ...
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