Public Health Quiz #10: Statistical Hypothesis Testing

1. A researcher is studying the effect of a new antidiabetic medication. To test the efficacy of the medication, the researcher sets up a null hypothesis (H0) that the medication has no effect on blood glucose levels compared to a placebo. After conducting a randomized clinical trial, the researcher finds a p-value of 0.03. Based on this result, what is the most appropriate action regarding the null hypothesis? 

Question 1 of 5

2. In a study aiming to assess the impact of a new diet on weight loss, the researchers state the null hypothesis that there is no difference in weight loss between individuals following the new diet and those following the standard diet. If the study results show a p-value of 0.08, how should the researchers interpret this finding? 

Question 2 of 5

3. A clinical trial is conducted to compare the efficacy of two antihypertensive drugs. The researchers set a significance level (alpha) of 0.01 for their hypothesis testing. After data analysis, a p-value of 0.005 is obtained. What does this p-value indicate in the context of this study? 

Question 3 of 5

4. In evaluating the effectiveness of a new teaching method for medical students, the null hypothesis states that the new method does not improve examination scores compared to the traditional method. If the study results in a p-value of 0.15, which of the following is the most appropriate interpretation? 

Question 4 of 5

5. A research study aims to investigate whether a new drug reduces the incidence of a specific type of headache. Before the study begins, the researchers define a significance level (alpha) of 0.05 for their statistical tests. At the conclusion of the study, the data yield a p-value of 0.04. Which of the following actions regarding the null hypothesis (H0) that the drug has no effect on headache incidence is most appropriate? 

Question 5 of 5


 

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