Arm Span Vs Height Ratios Lab Report
Arm Span to Height Ratios in Men Versus Women
Introduction: Arm span versus height ratios can be very helpful pieces of information. Arm span is the closest physiologic measurement to standing height and an increased arm span to standing height ratio can indicate a loss of height (Chestnut 2009). What is not mentioned, though, is if these ratios differ at all between male and females. Our goal in our assignment was to determine that there was a difference in the ratios between genders. Methods: The height and arm span were measured on 10 males and 10 females. In order to receive accurate data, the same people measured each time. To measure height, each person stood straight up in front of a tape measure taped on the wall and then a meter stick was placed on their head to avoid their hair from alter the data at all. In …show more content…
Alternate (HA): There is a difference in the ratio of height versus arm span in males and females.
Results: The ratios for the 10 males and 10 females were calculated. The male’s ratios ranged from 0.979-1.078 and the female’s ratios ranged from 0.969-1.044 (Figure 1). The mean ± for the males was 1.0149 ± 0.03153 and the women’s was 0.9957 ± 0.02268. I then used the Student’s t test and determined that ts = 1.564. Due to the fact that it was less than t0.05,df=18=2.010 the Ho, or null hypothesis, was accepted.
Discussion and Conclusions: The Ho was accepted and therefore we can conclude that there is no statistical difference between the arm span to height ratios in males versus females. Although there did seem to be an observable difference when you look at the data or the histogram, the degree of overlap most likely caused the lack of a statistical difference between the two groups. In order to increase the accuracy of this experiment we could increase the sample size even more and also account for differing genetics and ethnic
Introduction: Arm span versus height ratios can be very helpful pieces of information. Arm span is the closest physiologic measurement to standing height and an increased arm span to standing height ratio can indicate a loss of height (Chestnut 2009). What is not mentioned, though, is if these ratios differ at all between male and females. Our goal in our assignment was to determine that there was a difference in the ratios between genders. Methods: The height and arm span were measured on 10 males and 10 females. In order to receive accurate data, the same people measured each time. To measure height, each person stood straight up in front of a tape measure taped on the wall and then a meter stick was placed on their head to avoid their hair from alter the data at all. In …show more content…
Alternate (HA): There is a difference in the ratio of height versus arm span in males and females.
Results: The ratios for the 10 males and 10 females were calculated. The male’s ratios ranged from 0.979-1.078 and the female’s ratios ranged from 0.969-1.044 (Figure 1). The mean ± for the males was 1.0149 ± 0.03153 and the women’s was 0.9957 ± 0.02268. I then used the Student’s t test and determined that ts = 1.564. Due to the fact that it was less than t0.05,df=18=2.010 the Ho, or null hypothesis, was accepted.
Discussion and Conclusions: The Ho was accepted and therefore we can conclude that there is no statistical difference between the arm span to height ratios in males versus females. Although there did seem to be an observable difference when you look at the data or the histogram, the degree of overlap most likely caused the lack of a statistical difference between the two groups. In order to increase the accuracy of this experiment we could increase the sample size even more and also account for differing genetics and ethnic