14. IQ scores form a normal distribution with a mean ofu = 100 and a standard deviation of o = 15. Whatis the probability of obtaining a sample mean greaterthan M = 103,%3Da. for a random sample of n = 9 people?b. for a random sample of n = 25 people?c. for a random sample of n = 100 people?

Solution: 14. a. Let X be the IQ scores. From the given information, X follows normal distribution…

Answered: 14. IQ scores form a normal…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A population of N = 5 scores has a mean of u = 20 and a standard deviation of o = 4. Which of the following is the correct Interpretation of the standard deviation? O The average distance of scores from the mean of p- 20 is 5 points. O The average distance of scores from the mean of u = 20 is 1 point. The average distance of scores from the mean of u = 20 is 4 points. O The average squared distance of scores from the mean of u = 20 is 4 points.
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Suma has a box of 10 candies. Seven of them are Peach candies (P) and three are Caramel (C). She picks a candy at random from the box, without replacing it picks a second candy again at random. {Hint: Draw a tree diagram to understand this experiment} What is the sample space of this experiment? What is probability of picking two Caramel candies? What is the probability of picking Peach candy and a Caramel candy in that order?
4. What proportion of the normal distribution is located in the tail beyond z= -1.50?
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14. IQ scores form a normal distribution with a mean of u = 100 and a standard deviation of o = 15. What is the probability of obtaining a sample mean greater than M = 103, %3D a. for a random sample of n = 9 people? b. for a random sample of n = 25 people? c. for a random sample of n = 100 people?