ADMS 2320 Lecture Notes - Null Hypothesis, Mean Absolute Difference, Test Statistic
Document Summary
For each variable measured in this study, success would mean a reduction over. Excel is used to measure the difference scores between the before and after measures, and since it performs this calculation as before after, a positive number indicates a reduction. This means that in general, to decide if a variable is reduced significantly, the following hypotheses are tested: 0 program makes no diff program is successful. The test statistic for matched pairs is t x s. P(t<=t) two-tail t critical two-tail t=2. 8969 exceeds the critical value and so the null hypothesis is rejected. This means that there is sufficient evidence to infer that the program leads to positive reductions in other words people lost weight. 2. 0369 ((repeat for chl lvl, fat, )) all get rejected significant reductions in each variable overall the program is successful. To determine if gender affects reduction in each of the variables measured in the. 2. study, the hypotheses to be tested are: