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Notation In a clinical trial of the cholesterol drug
Chapter 5, Problem 1BSC(choose chapter or problem)
Problem 1BSC
Notation In a clinical trial of the cholesterol drug Lipitor, 270 subjects were given a placebo, and 7% of them developed headaches. For such randomly selected groups of 270 subjects given a placebo, identify the values of n, p, and q that would be used for finding the mean and standard deviation for the number of subjects who develop headaches.
Questions & Answers
QUESTION:
Problem 1BSC
Notation In a clinical trial of the cholesterol drug Lipitor, 270 subjects were given a placebo, and 7% of them developed headaches. For such randomly selected groups of 270 subjects given a placebo, identify the values of n, p, and q that would be used for finding the mean and standard deviation for the number of subjects who develop headaches.
ANSWER:
Problem 1BSC
Answer:
Step1 of 2:
We have In a clinical trial of the cholesterol drug Lipitor, 270 subjects were given a placebo, and 7% of them developed headaches. For such randomly selected groups of 270 subjects given a placebo,we need to identify the values of n, p, and q that would be used for finding the mean and standard deviation for the number of subjects who develop headaches.
Consider a random variable “x” follows binomial distribution with sample size “n” and proportion “p”.
i,e.X B(n, p)
Where,
n = 270 and p = 0.07.
q = 1 - p
= 1 - 0.07.