Eleven patients were weighed before and after a diet which was designed to help patients reduce weight. Eight of these patients did lose weight but three patients had a weight increase. The observed mean (after-before) was x= -.06 and sample variance was 1.44 What is the value of the test statistic you will use for testing your hypothesis? Eleven patients were weighed before and after a diet which was designed to help patients reduce weight. Eight of these patients did lose weight but three patients had a weight increase. The observed sample mean (in kg) and sample variance (in kg 2 ) of the eleven changes in weight (after - before) were x = 0 . 6 and s 2 = 1 . 4 4 Eleven patients were weighed before and after a diet which was designed to help patients reduce weight. Eight of these patients did lose weight but three patients had a weight increase. The observed sample mean (in kg) and sample variance (in kg 2 ) of the eleven changes in weight (after - before) were -1.66 0.166 .138 -0.138