x?testld 184 Statistics MATH 1342 Summer 2 2018 odie Roberts & 7/18/18 2:25 PM Q
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Question
x?testld 184 Statistics MATH 1342 Summer 2 2018 odie Roberts & 7/18/18 2:25 PM Quiz: Chapter 3 Review Quiz Submit Quiz This Question: 1 pt 14 of 22 (8 complete) This Quiz: 22 pts possible IQ scores are measured with a test designed so that the mean is 117 and the standard deviation is 16. Consider the group of IQ scores that are unusual. What are the z scores that separate the unusual IQ scores from those that are usual? What are the IQ scores that separate the unusual 1Q scores from those that are usual? (Consider a value to be unusual if its z score is less than -2 or greater than 2) IQ scores from those that are usual? The lower z score boundary is The higher 2 score boundary is (Simplify your answer.) What are the IQ scores that separate the unusual IQ scores from those that are usual? The lower bound IQ score is The higher bound 1Q score is r in each of the answer boxes pmExplanation / Answer
the lower z score boundary is -2
highest z score boundary is 2
lower bound IQ score is =mean+z*std deviation =117-2*16=85
higher bound IQ score is =mean+z*std deviation =117+2*16=149
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