A doctor released the results of clinical trials for a vaccine to prevent a particular disease. In these clinical trials, 400,000 children were randomly divided in 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. Of the 200,000 children in the experimental group, 44 developed the disease. Of the 200,000 children in the control group, 121 developed the disease. Complete parts (a) through (f) below.

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    • Find the test statistic for this hypothesis
    • Determine the P value
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    • State the conclusion for this hypthesis test
A doctor released the results of clinical trials for a vaccine to prevent a particular disease. In these clinical trials, 400,000 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. Of the 200,000 children in the experimental group, 44 developed the disease. Of the 200,000 children in the control group, 121 developed the disease. Complete parts (a) through (f) below.

(a) What type of experimental design is this?

- Completely randomized design
- Case-control
- Matched-pairs design
- Randomized block design
Transcribed Image Text:A doctor released the results of clinical trials for a vaccine to prevent a particular disease. In these clinical trials, 400,000 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. Of the 200,000 children in the experimental group, 44 developed the disease. Of the 200,000 children in the control group, 121 developed the disease. Complete parts (a) through (f) below. (a) What type of experimental design is this? - Completely randomized design - Case-control - Matched-pairs design - Randomized block design
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