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What is the absolute risk reduction for clinical remission in the azithromycin group compared to placebo?

A study compares is determining the impact of daily consumption of green tea on systolic blood pressure. Among patients who began drinking green tea daily (n=23) the systolic blood pressure decreased by a mean of 5 mmHg and among patients with no dietary change (n=32) the systolic blood pressure decreased by a mean of 1 mmHg. Which of the following tests would be most appropriate to determine if the results are statistically significantly different?

A RCT found that a new drug for hypertension, incredapril, decreased the rate of cough compared to lisinopril (RR: 0.83, 95% CI 0.68 to 0.97). What is the correct interpretation of how much incredapril decreased the rate of cough compared to lisinopril?

A RCT compared a new biologic agent for asthma, depemokimab, to placebo. Which of the following is the best interpretation of the Kaplan-Meier plot exacerbation results?

Which of the following statements about Python’s random module is true?

What statistical test should be used for a pair-wise comparison when a chi-squared test used as the omnibus between 3 groups is found to be statistically significant?

What will be the output of the following Python code? def greet(name=”Guest”):    print(f”Hello, {name}!”)greet(“Alice”)greet()

Melatonin is compared to placebo for sleep in a single-group randomized cross-over study (n=328). Participants are randomized to receive melatonin or placebo for 3 months and then take the other agent for 3 months following a 1-week washout period. Which of the following tests would be most appropriate to determine if this is a statistically significant difference in mean sleep latency (i.e., mean minutes to fall asleep)?

Which of the following is TRUE regarding variables in linear/logistic regression models?

Match the Python operation with its result: