Use the Two-Proportions Z-Test to Perform the Required Hypothesis Test

question 44

Essay

Use the two-proportions z-test to perform the required hypothesis test. Assume that independent simple randomsamples have been selected from the two populations. Use the P-value approach.
-7 of 8500 people vaccinated against a certain disease later developed the disease. 18 of 10,000 people vaccinated with a placebo later developed the disease. At the 2% significance level, do the data provide sufficient evidence to conclude that those who are vaccinated against the disease are at lower risk of developing the disease than those vaccinated with a placebo?

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