3.) In a randomized experiment, double-blind clinical trials of Prevnar, infants were randomly divided into two groups. Subjects in group 1 received Prevnar, while subjects in group 2 received a control vaccine. After the second dose, 137 of 452 subjects who received Prevnar experienced drowsiness as a side effect. After the second dose, 31 of 99 subjects who the control vaccine experienced drowsiness as a side effect. Does the evidence suggest that a lower proportion of subjects who took Prevnar experienced drowsiness as a side effect than subjects who had the control vaccine at the ? = 0.01 level of significance? a.) Verify that the requirements for inference about two population proportions is satisfied. b.) What is the Null and Alternative Hypotheses? What test will you be using? c.) What is the level of significance and the ?-value?
3.) In a randomized experiment, double-blind clinical trials of Prevnar, infants were randomly divided into two
groups. Subjects in group 1 received Prevnar, while subjects in group 2 received a control vaccine. After the second
dose, 137 of 452 subjects who received Prevnar experienced drowsiness as a side effect. After the second dose, 31
of 99 subjects who the control vaccine experienced drowsiness as a side effect. Does the evidence suggest that a
lower proportion of subjects who took Prevnar experienced drowsiness as a side effect than subjects who had the
control vaccine at the ? = 0.01 level of significance?
a.) Verify that the requirements for inference about two population proportions is satisfied.
b.) What is the Null and Alternative Hypotheses? What test will you be using?
c.) What is the level of significance and the ?-value?
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