the average IQ of an adult is 100 A research phychologist devised a course to improve IQ's a group of 10 ramdomly cholsen adults took the course and at the end of the course their IQ's were measured. The average IQ score for the class was ramdom sample=110.9. Let x be a ramdom variable that represents the IQ score of an adult who takes the course you may assume that x has a normal distribution with standard deviation=15 does the above sample result provide convincing evidence that adults who take the course have a mean IQ score greater than 100? use level 1% level of significance.

the average IQ of an adult is 100 A research phychologist devised a course to improve IQ's a group of 10 ramdomly cholsen adults took the course and at the end of the course their IQ's were measured. The average IQ score for the class was ramdom sample=110.9. Let x be a ramdom variable that represents the IQ score of an adult who takes the course you may assume that x has a normal distribution with standard deviation=15 does the above sample result provide convincing evidence that adults who take the course have a mean IQ score greater than 100? use level 1% level of significance.

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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