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Statistics Workbook Exercises 11 and 16

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Exercises 11 and 16 Alena Coleman

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1) The measured demographic variables would be age, income, length of labor, return to work, and number of hours worked each week. These categories provide defined values that can be used to obtain set intervals.
2) The statistics used to describe the length of labor were the N (number or value), Mean and Standard Deviation. Yes, these are appropriate as hours worked are a defined set value with no obvious margin of error.
3) Another statistic that could have been used is the Median which describes the middle of the ordered value set, however to me this is not the best choice.
4) The score distribution for the experimental and control groups for length of labor are similar. There is not a significant difference in the described hours to change the outcome of the study.
5) Both the experimental and control group were similar for the types of feeding. For both bottle and breast, both had the same value of (2) and the remaining categories were very close in values.
6) In comparing the marital status mode between the experimental and control groups, the majority of women in both groups were married with a frequency of 25 and 78.1 percent in the experimental and frequency of 31 and 86.1 percent in the control.
7) Median values can be obtained from the education categories for both groups. This would be the mid-range value of Some College. The experimental group has a median of 11 and the control group has a median of 15.
8) The findings in this study cannot be generalized for black women as black women did not account for the majority of the participants. The data would be grossly skewed if stating a generalization since there were no black women in the control group.
9) The reason there is data on only 30 subjects on the experimental group and 34 in the control group is explained on the disclaimer information at

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