TC_Chapter_Problems_2[1]

# TC_Chapter_Problems_2[1] - HLTH 501 WEEK 2 PROBLEMS30...

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HLTH 501 W EEK 2 P ROBLEMS —30 POINTS 10 points per problem. Put answers in table below: 1. A 205 B 175 C 245 D 70 E 350 F NO G 50 H 75 2. 3. 1. The following box-whisker plot shows the distributions of total cholesterol levels in boys and girls 10-15 years of age. Boy s Girl s 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 240 25 0 26 0 270 A. What is the median total cholesterol level in boys? ____ 205 ____ B. What is Q1 for boys? _____ 175___ C. What is Q3 for boys? _____ 245___ D. Lower Limit for Outliers for boys: __ ___70___ E. Upper Limit for Outliers boys: ___ 350_____ F. Are there any outliers in total cholesterol in boys? ____ _NO ___ G. What proportions of the boys have total cholesterol less than 205? ___ 50____ % Page 1 of 3

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HLTH 501 H. What proportions of the girls have total cholesterol less than 205? ____ 75___ % 2. As part of a study, investigators wanted to assess the accuracy of self-reported smoking status. Participants are asked whether they currently smoke or not. In addition, laboratory tests are performed on hair samples to determine presence or absence of nicotine. The laboratory assessment is considered the gold standard, or truth about nicotine.
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