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# In a clinical trial of a vaccine, 12,000 children were randomly divided into two groups.

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
• loxners
• 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
• loxners
• Apr 01, 2018 at 11:38pm

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