In a clinical trial of a vaccine, 12,000 children were randomly divided into two groups. The subjects in group 1 (the experimental group) were given the vaccine while the subjects in group 2 (the control group) were given a placebo. 6,000 children in the experimental group,73 developed the disease. Of 6,000 children in the control group,119 developed the disease.
z=-3.35 is out of... View the full answer
- What is the test statistic ? Zo=? round two decimal places
- Apr 01, 2018 at 3:16pm
- Z According to the level of significance is-1.28 z sample is-3.35
- Apr 01, 2018 at 4:02pm
- p value?
- Apr 01, 2018 at 11:23pm
- The problem does not ask for it, however. p = 0.000 because between -3 and 3 the probability is 0.997. For values less than z = -3, 35 the value of p is very small
- Apr 01, 2018 at 11:38pm