The following data look at the association between location and whether or not the adolescent has had sexual intercourse. Are location and sexual intercourse independent? Give each of the following to receive full credit: 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value.    Intercourse   Location Yes No Total Rural 20 41 61 Suburban 26 148 174 Urban – small city 30 26 56 Urban – large city 41 129 170 Total 117 344 461

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.