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Answer to Question #53739 in Statistics and Probability for samuel

Question #53739
the Wechsler iq test is designed so that the mean is 100 and the standard deviation is 15 for the population of normal adults. listed below are iq scores for professional pilots. it is claimed that because professional pilots are a more homogeneous group than the general population, they have iq with a standard deviation less than 15. test the claim using a 0.5 significance level.
121 112 115 121 116 107 127 98 116 101 130 114
1
Expert's answer
2015-07-29T09:32:13-0400
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