Results from the Wechsler Adult Intelligence Scale, a common IQ test, are approximately normally distributed with a

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Results from the Wechsler Adult Intelligence Scale, a common IQ test, are approximately normally distributed with a mean of 100 and a standard deviation of 15.

a. Scores on the test that are 130 and above are said to be very superior. What proportion of the population will get very superior scores?

b. Scores that are 120 to 129 are said to be superior. What proportion of the population will get superior scores?

c. Above what score would you need to be in the top 10% of test takers?

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Introduction To Statistical Investigations

ISBN: 9781119683452

2nd Edition

Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy

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Question Posted: Mar 05, 2023 05:07 AM

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Results from the Wechsler Adult Intelligence Scale, a common IQ test, are approximately normally distributed with a

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Introduction To Statistical Investigations

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