Laserfiche WebLink
WLSOONSLN ADMIMSTRATIVE CODE 136 <br /> Unofficial Text(See Printed Volume). Current through date and Register shown on Title Page. <br /> Table D • <br /> Example of Rank Sam Value for Tied Data <br /> .............. I <br /> Benzene <br /> Concentration(ug/ Check for Rank Sawn of <br /> Year/Date 1) Ties Rank I st Year(Wrs) <br /> ........... ...... <br /> la Ye at, !n 300 9 <br /> I st Year,2nd Quarter 280 7 24.5 <br /> 151 Year;3fd Quarter 105 4 <br /> Is'Year;4th Quarter 110 • 5.5 <br /> 2nd Year, 119 Quarter 83 3 <br /> 2nd Year,2nd Quarter so . 1.5 <br /> 2nd Year,3yd Quarter 110 S.5 <br /> 2nd Year;4th Quarter so 1-5 <br /> U=26-Wrs = 1.5 <br /> 8. Probability and the U Statistic- Table E shim the cx value and the confidence level for values of calculated for 2 groups <br /> of 4 samples each. <br /> Table E <br /> Probability and U Statistic <br /> (For 2 Groups of 4 samples each) <br /> U Statistic Level of significance a Confidence Level(O/o) <br /> 0.014 ---08.6 1 <br /> 1 0.029 97.1 <br /> 2 0.057 94.3 <br /> 3 0.100 90.0 <br /> 9. If more than 8 consecutive rounds of data are available,a Matin-Whitney U statistic can be calculated similar to the <br /> method presented hem Each set of data to be compared should represent the same span of time(e.g. I year)and the same <br /> time;interval between samples(e.g.,quarterly). The test must be conducted at a level of significance(a)of:5 0.10. <br /> References: <br /> Conover,WJ.,Practical Nonparametric Statistics,2nd Ed.,John Wiley&Sons, 1971,pp.216-223. <br /> Gilbert,R.O.,Statistical Methods for Environmental Pollution Monitoring,Van Nostrand Reinhold, 1997,pp.204-240 <br /> and 272. <br /> kc&er,JanuaM 2001.?4m 541 <br />