Stats1

# Stats1 - capabilities and bench press weight is measured by...

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Keith Henkel Due 2|5|08 1. a. Research Hypothesis: There is a direct correlation between height and weight. Null Hypothesis: There is no correlation between height and weight. The resulting correlation will be closest to positive 1.0. Most tall people weigh more than smaller people because they have more mass, probably due to added bone mass, muscle mass, etc. This is excluding the differences in obesity. Were everyone in the test sample thin, or everyone fat, then there would be a correlation very close to one. Even if there are some differences though, the correlation would still be closer to one than to zero. Therefore the research hypothesis is correct. b. Research Hypothesis: There is a correlation between one’s GPA and the amount of weight one can bench press. Null Hypothesis: There is no correlation between one’s GPA and the amount of weight one can bench press. The resulting correlation will be closest to 0.0. Since GPA is a measure of one’s academic performance, based on one’s mental
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Unformatted text preview: capabilities, and bench press weight is measured by one’s physical performance and muscle size, and since there is no correlation between mental and physical performance (there are smart people who have almost no muscle mass, and those with a lot), then there is no correlation and the null hypothesis is correct. c. Research Hypothesis: There is an inverse correlation between the daily air temperature and the average weight of clothing worn. Null Hypothesis: There is no correlation between the daily air temperature and the average weight of clothing worn. The resulting correlation will be closest to -1.0. As the temperature rises, more clothing feels more and more uncomfortably warm, and usually less clothing is worn as the temperature goes up, so the correlation is inversely proportional and my research hypothesis is correct....
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