PSY 230 Rio Salado Null & Alternative Hypothesis in Statistical Symbols Questions
Question Description
Two types of medication for hives are being tested. The manufacturer claims that the new medication A is more effective than the standard medication B and undertakes a comparison to determine if medication A produces relief for a higher proportion of adult patients within a 40-minute time window. In a random sample of 40 adults given medication A, 34 were symptom-free after 40 minutes. In a random sample of 34 adults given medication B, 28 were symptom-free after 40 minutes. The hypothesis test is to be carried out at a 1% level of significance.
1. State the null and alternative hypotheses in words and in statistical symbols.
2. What statistical test is appropriate to use? Explain the rationale for your answer.
3. Would the test be right-tailed, left-tailed or two-tailed? Explain the rationale for your answer.
4. Describe an outcome that would result in a Type II error. Explain the rationale for your answer.
5. Describe an outcome that would result in a Type I error. Explain the rationale for your answer.
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