Exercises 11 and 16 Statistics for Healthcare Professionals Essay examples

1729 Words Sep 15th, 2014 7 Pages
Complete Exercises 11 and 16 in Statistics for Health Care Research: A Practical Workbook
In order to receive full credit on calculated answers, please show your work. (Use Word's equation editors, etc., and/or provide a short written description as to how you obtained the final result.)
Exercise 11 1. What demographic variables were measured at least at the interval level of measurement?
Age, income, length of labor, weeks to return to work and number of hours working each week. The experimental group with 32 subjects had a mean of 26.72 and the control group with 35 subjects of 26.89. Income of the experimental group was a mean of $35, 675 with 30 subjects while the control group was $41,450 with 34 subjects. The number for the
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I think this would incorporate those other factors I mentioned above. 4. Were the distributions of scores similar for the experimental and control groups for the length of labor? Provide a rationale for your answer.
Yes. The number of subjects were close, 30 vs 33. The SD of the experimental group was on 0.58% higher than the control group while the mean was only 1.84% higher. Neither of these differences is significant. 5. Were the experimental and control groups similar in their type of feeding? Provide a rationale for your answer.
Yes, they were. The experimental group had 13 or 40.6% who breast fed, 17 or 53.1% who bottle fed and 2 or 6.3% who did both while the control r4oup had 15 or 41.7% who breast fed, 18 or 50.0% who bottle fed and 2 or 5.6% who did both. However, it is noted that there is missing data so percentages do not always total 100%, thus the accuracy of these numbers is questionable. 6. What was the marital status mode for the subjects in the experimental and control groups? Provide both the frequency and percentage for the marital status mode for both groups.
25 out of 32 in the experimental group are married (78.1%), 1 is separated/divorced (3.1%) and 6 are single (18.8%). In the control group, 31 are married (86.1%), 1 is separated/divorced (2.8%) and 3 are single (8.3%). The mode is married in each group as that is the value that appears most often. The frequency is

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