Comparing Two Independent Population Proportions · Example 1
Two types of medication for hives are being tested to determine if there is a difference in the proportions of adult patient reactions. Twenty out of a random sample of 200 adults given medication A still had hives 30 minutes after taking the medication. Twelve out of another random sample of 200 adults given medication B still had hives 30 minutes after taking the medication. Test at a 1% level of significance.
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OpenStax, Introductory Statistics 2e · §10.3 Comparing Two Independent Population Proportions · Example 1
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