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In a study concerning a new treatment of a certain
Chapter 5, Problem 17E(choose chapter or problem)
Problem 17E
In a study concerning a new treatment of a certain disease, two groups of 25 participants in each were followed for five years. Those in one group took the old treatment and those in the other took the new treatment. The theoretical dropout rate for an individual was 50% in both groups over that 5-year period. Let X be the number that dropped out in the first group and Y the number in the second group. Assuming independence where needed, give the sum that equals the probability that Y ≥ X + 2. Hint: What is the distribution of Y − X + 25?
Questions & Answers
QUESTION:
Problem 17E
In a study concerning a new treatment of a certain disease, two groups of 25 participants in each were followed for five years. Those in one group took the old treatment and those in the other took the new treatment. The theoretical dropout rate for an individual was 50% in both groups over that 5-year period. Let X be the number that dropped out in the first group and Y the number in the second group. Assuming independence where needed, give the sum that equals the probability that Y ≥ X + 2. Hint: What is the distribution of Y − X + 25?
ANSWER:
Problem 17E
In a study concerning a new treatment of a certain disease two groups of 25 participants in each were followed for five years. Those in one group took the old treatment and those in the other took the new treatment. The theoretical dropout rate for an individual was 50% in both groups over that 5-year period. Let X be the number that dropped out in the first group and Y the number in the second group. Assuming independence where needed, give the sum that equals the probability that Y 
Step by Step Solution
Step 1 of 3
Let X is the number drop in the first groups
And Y is the number of dropouts in the second group.
