Compound designed to improve wound healing in trauma patient

Reference no: EM13102560

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: EM13102560

Questions Cloud

Surival rate for caucasians for all forms : The five year surival rate for Caucasians for all forms increased from 37% in 1960 to 58% now. Express this change in two ways (1) as an absolute difference in terms of percentage points and (2) as a relative difference in terms of percent.

Procedures to determine the ethical component : Determine the ethical component in each example? How do you think about it? Do you believe the procedures described are finally acceptable or unacceptable?

Explain interview questions for family to adopt child : Mr. and Mrs. Lawson brought their 4-year-old adopted daughter, Clara, to see Dr. Mason, a psychiatrist. Write down information would you like to learn during interview with family?

Probability for uniformly distributed random variable : The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons. Compute the probability that the steel mill will produce more than 150 metric tons next week.

Compound designed to improve wound healing in trauma patient : 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 wou..

Probability of long distance calls : The long distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes. find the probability that a call

Officials use to determine the rejection region : What critical value should the company officials use to determine the rejection region?

What were initial charges on the spheres : Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6020 N when separated by 50 cm, center-to-center.

Determining probability and tree diagrams : A craftsperson makes stuffed animals for sale. 85% of the animals she makes are bears while the remaining 15% are rabbits. Suppose she sells 75% of her bears at craft shows but only 50% of her rabbits are sold at craft shows.

User Account

All Pages