Difference in proportions observed in the trial

Reference no: EM1394530

A clinical trial was conducted comparing a new compound designed to improve wound healing in trauma patients to a placebo. After treatment for 5 days, 58% of the patients taking the new compound had a substantial reduction in the size of their wound as compared to 44% in the placebo group. The trial failed to show significance. How many subjects would be required to detect the difference in proportions observed in the trial with 80% power?

A two-sided test is planned at significance level of 0.05.

Reference no: EM1394530

Questions Cloud

Examine practices of effective leadership and accountability : Examine the practices of effective leadership and accountability which contribute to documented success and create the individual plan for employing similar strategies at college and in career.

How they have used the information technology : Research ecommerce also choose one industry which has made it success off of ecommerce. Write a 3 page, double spaced paper, using APA format, about the industry. Illustrate what the industry does also explain how they have used the information te..

Explain the levels of acetylcholine in heart : If tacrine was given to a person, can you explain what would happen to levels of acetylcholine in the heart, skeletal muscles, and brain?

Determining the responsiveness of consumers or prospects : Punitive damages in Canada are rarely allowed. Robins & Robins move to dismiss the case under the theory of sovereign immunity. Will Robins & Robins win this motion using this theory? Explain why or explain why not.

Difference in proportions observed in the trial : The trial failed to show significance. How many subjects would be required to detect the difference in proportions observed in the trial with 80% power?

Calculate delta g for atp hydrolysis : Calculate delta G for ATP hydrolysis when the concentration of ATP, ADP, Pi are all equal to 1mM. What is delta G when the concentration of ATP, ADP, and Pi when the concentration of ATP, ADP, and Pi are all equal to 2M?

Selecting appropriate survey techniques : Critique the HR manager's planned approach and give him advice on how to proceed. You can assume that a reasonable estimate for the proportion of new hires that are happy with the company is .8.

Illustrate what alternative investments you have access to : Assess the authors' find outings in regards to consumer attitudes about personal information also purchase behaviours. Synthesise the information presented regarding variance among demographic market segments also Internet purchases. Explain you a..

Estimate the proportion of students who consume coffee : How many students would be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 5% of the true proportion with 95% confidence.

User Account

All Pages