Solution Found!
About six months into George W. Bush’s second term as
Chapter 3, Problem 69E(choose chapter or problem)
Problem 69E
About six months into George W. Bush’s second term as president, a Gallup poll indicated that a near record (low) level of 41%of adults expressed “a great deal” or “quite a lot” of confidence in the U.S. Supreme Court (http://www.gallup.com/poll/content/default.aspx?ci=17011, June 2005). Suppose that you conducted your own telephone survey at that time and randomly called people and asked them to describe their level of confidence in the Supreme Court. Find the probability distribution for Y , the number of calls until the first person is found who does not express “a great deal” or “quite a lot” of confidence in the U.S. Supreme Court.
Questions & Answers
QUESTION:
Problem 69E
About six months into George W. Bush’s second term as president, a Gallup poll indicated that a near record (low) level of 41%of adults expressed “a great deal” or “quite a lot” of confidence in the U.S. Supreme Court (http://www.gallup.com/poll/content/default.aspx?ci=17011, June 2005). Suppose that you conducted your own telephone survey at that time and randomly called people and asked them to describe their level of confidence in the Supreme Court. Find the probability distribution for Y , the number of calls until the first person is found who does not express “a great deal” or “quite a lot” of confidence in the U.S. Supreme Court.
ANSWER:
Solution
Step 1 of 1
We have to find the probability distribution of Y
Let Y be the no. of calls until the first person is finding that he does not express “a great deal” or “quite a lot” of confidence
Given than 41% of the adults express “a great deal” or “quite a lot” of confidence
So q=0.41
means 1-p=0.41
p=0.59