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To test the hypothesis that eating fish makes one smarter, a random sample of 12 persons take a fish oil supplement for one year and then are given an IQ test. Here are the results: 116        111        101        120        99           94           106        115        107        101        110        92 Your null hypothesis is  HA: μ < 100 (no effect -- eating fish does not help increase the mean IQ)  H0: μ = 100 (no effect -- eating fish does not help increase the mean IQ)  HA: μ > 100 (no effect -- eating fish does not help increase the mean IQ)  H0: μ = 100 (have effect -- eating fish helps increase the mean IQ)

To test the hypothesis that eating fish makes one smarter, a random sample of 12 persons take a fish oil supplement for one year and then are given an IQ test. Here are the results: 116        111        101        120        99           94           106        115        107        101        110        92 Your null hypothesis is  HA: μ < 100 (no effect -- eating fish does not help increase the mean IQ)  H0: μ = 100 (no effect -- eating fish does not help increase the mean IQ)  HA: μ > 100 (no effect -- eating fish does not help increase the mean IQ)  H0: μ = 100 (have effect -- eating fish helps increase the mean IQ)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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To test the hypothesis that eating fish makes one smarter, a random sample of 12

persons take a fish oil supplement for one year and then are given an IQ test. Here are the results:

116        111        101        120        99           94           106        115        107        101        110        92

Your null hypothesis is

 HA: μ < 100 (no effect -- eating fish does not help increase the mean IQ)

 H0: μ = 100 (no effect -- eating fish does not help increase the mean IQ)

 HA: μ > 100 (no effect -- eating fish does not help increase the mean IQ)

 H0: μ = 100 (have effect -- eating fish helps increase the mean IQ)

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