Workbook EX 11 and 16
EXERCISE 11
1. What demographic variables were measures at least at the interval level of measurement?
a. The number of hours worked per week and the length of labor (hrs)
2. What statistics were used to describe the length of labor in this study? Were these appropriate?
a. Length of labor for both the control and experimental groups were described with mean and standard deviations. Yes, these were appropriate measures of statistics.
3. What other statistics could have been used to describe the length of labor? Provide a rationale for your answer.
a. In addition to mean and standard deviations, mode could have been used in this study to describe length of labor. It would have given an understanding as to how long the common length of labor was. Median could have also been used, but I don’t think it would be any more beneficial than knowing the average and most common length of labor.
4. Were the distributions of scores similar for the experimental and control groups for the length of labor? Provide a rationale for your answer.
a. The standard deviation for the experimental and control groups were 7.78 and 7.2 hours, respectively. By looking at standard deviation, yes the distribution of scores appear similar. However, when looking at the average length of hours for these groups, the experimental group’s length of labor was almost 2 hours longer which I feel is quite a significant difference. Each group must have similar outliers to have affected the standard deviation in such a way to make them so similar.
5. Were the experimental and control groups similar in their type of feeding? Provide a rationale for your answer.
a. Yes, bottle feeding was the most common type of feeding used in both the experimental and control group. The experimental group chose bottle 53.1%, breast feeding 40.6% and both 6.3%. The control group chose bottle 50.0%, breast feeding 41.7%, and both 5.6%. Each group had the highest use of bottle, second highest use of breast feeding,
1. What demographic variables were measures at least at the interval level of measurement?
a. The number of hours worked per week and the length of labor (hrs)
2. What statistics were used to describe the length of labor in this study? Were these appropriate?
a. Length of labor for both the control and experimental groups were described with mean and standard deviations. Yes, these were appropriate measures of statistics.
3. What other statistics could have been used to describe the length of labor? Provide a rationale for your answer.
a. In addition to mean and standard deviations, mode could have been used in this study to describe length of labor. It would have given an understanding as to how long the common length of labor was. Median could have also been used, but I don’t think it would be any more beneficial than knowing the average and most common length of labor.
4. Were the distributions of scores similar for the experimental and control groups for the length of labor? Provide a rationale for your answer.
a. The standard deviation for the experimental and control groups were 7.78 and 7.2 hours, respectively. By looking at standard deviation, yes the distribution of scores appear similar. However, when looking at the average length of hours for these groups, the experimental group’s length of labor was almost 2 hours longer which I feel is quite a significant difference. Each group must have similar outliers to have affected the standard deviation in such a way to make them so similar.
5. Were the experimental and control groups similar in their type of feeding? Provide a rationale for your answer.
a. Yes, bottle feeding was the most common type of feeding used in both the experimental and control group. The experimental group chose bottle 53.1%, breast feeding 40.6% and both 6.3%. The control group chose bottle 50.0%, breast feeding 41.7%, and both 5.6%. Each group had the highest use of bottle, second highest use of breast feeding,