A construction manager claims to have just hired someone with an IQ that belongs to the top 5% of all recent engineering school graduates. The relevant distribution of IQ's is known to be normal, with a mean of 120 points and a standard deviation of 10 points. a. If a graduate is chosen at random, what is the probability that his IQ is more than 115? 0.69 b. If a graduate is chosen at random, what is the probability that his IQ is between 125 and 130? 0.15 c. What should be the IQ of the person to be included in the top 5%? 136.45
A construction manager claims to have just hired someone with an IQ that belongs to the top 5% of all recent engineering school graduates. The relevant distribution of IQ's is known to be normal, with a mean of 120 points and a standard deviation of 10 points. a. If a graduate is chosen at random, what is the probability that his IQ is more than 115? 0.69 b. If a graduate is chosen at random, what is the probability that his IQ is between 125 and 130? 0.15 c. What should be the IQ of the person to be included in the top 5%? 136.45
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Related questions
Question
ARE MY ANSWERS CORRECT?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill