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3502_Stats3_LabFall2010

3502_Stats3_LabFall2010 - Brittany Haynes Kin 3502 Section...

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Brittany Haynes Kin 3502 Section 5 I.D. 99 KIN 3502: Tests and Measurement in Kinesiology Stats Lab 3: Simple Correlation, Prediction Equation, and Confidence Intervals Assignment 1. a) Calculate a one-tailed T-test and two tailed T-test (excel function is TTEST use type 2) to see if there is a difference between males’ and females’ BMI. What is the p-value for each test? See excel spreadsheet. P-value for one tailed= 1/103=.01 P-value for two tailed= 2/103=.019 b) What are the null hypothesis, alternate hypothesis, and directional hypothesis you would use? Null hypothesis: There is no relationship between male and female BMI scores. Alternative hypothesis: There is a relationship between male and female BMI scores. Directional hypothesis: The BMI scores of males are larger than those of females. c) What is your conclusion? Why are the p-values different for the one and two tailed tests? I determined that there was a relationship between male and female BMI scores, leading me to reject the null hypothesis. The one tailed P-value is smaller than the two tailed P-
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