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Statistics / Elementary Statistics 12 / Chapter 10.5 / Problem 15BSC

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

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Appendix B Data Sets.Refer to the indicated data set in

Chapter 10, Problem 15BSC

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QUESTION:

Problem 15 BSC

Appendix B Data Sets.Refer to the indicated data set in Appendix B.

Predicting IQ ScoreRefer to Data Set 6 in Appendix B and find the best regression equation with IQ score as the response(y)variable. Use predictor variables of brain volume and/or body weight. Why is this equation best? Based on these results, can we predict someone’s IQ score if we know their brain volume and body weight? Based on these results, does it appear that people with larger brains have higher IQ scores?

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QUESTION:

Problem 15 BSC

Appendix B Data Sets.Refer to the indicated data set in Appendix B.

Predicting IQ ScoreRefer to Data Set 6 in Appendix B and find the best regression equation with IQ score as the response(y)variable. Use predictor variables of brain volume and/or body weight. Why is this equation best? Based on these results, can we predict someone’s IQ score if we know their brain volume and body weight? Based on these results, does it appear that people with larger brains have higher IQ scores?

ANSWER:

Problem 15 BSC

Answer:

Step1 of 3:

We have Data Set 6 in Appendix B IQ score

IQ(y)	vol(x)	IQ(y)	vol(x)
96	1005	101	1173
89	963	96	1079
87	1035	93	1067
87	1027	88	1104
101	1281	94	1347
103	1272	85

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