2005 Recycling Pilot Program Report

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March 23, 2005 Page 6 Table 4 Comparison of Monday Routes - Jufy and 5eptember Monday Dual Stream Routes' July 9U% Confidence Interval Monday Single Stream Routesz September y��Stically 90% Confidence 5ignificant Intenral pifFerence Material ��n Lower Upper Mean � Lower � Upper Category Paper 57.9% 54.5% 61.3% 78.7% Metals 7.9% 7.3% 8.5% 2.8% Glass 19.7% 96.4% 23.0% 5.3% Plastic 10.7% 9.0% 12.4% 6.0% Contaminants 3.9°/a 2.1% 5.7% 7.1% Total3 100% nla n(a 100% � Eight samples were sorted from iwo Monday routes. � Four samples were sorted fmm two Nbnday routes. 3The tolals may not equal the sum of The material categories due to rounding. 75.0% 2.0% 4.4% 4.8% 5.B% nla 82.4% 3.6% 6_2% 7.2% S.4°IO n!a Table 5 Comparison of Monday Routes - Jufy and Octaber Monday Dua! Stream Routes' Monday Single Stream Routesz Ju! October 90% Confidence 90% Confidence lnterval Interval MateriaE Mean Lower Upper Nfean Cate o Paper 57.9% 54.5% 61.3% 77.0% Metals 7.9% 7.3% 8.5% 2.4% Glass 19.7% 16.4% 23.Q% 5.7% Plaskic 1Q.7% 9.0% 12.4% 4.9% Contaminants 3.9% 2.1 % 5.7% 9.9% Total3 100% nla nla 100% � Eight samples were sorted from two �llonday routes. z Four samples were sorted from hvo Monday routes. 3 The totals may not equal the sum of the material categories due to rounding. Lower 74.0% 1.8% 4.3% 4.1 % 8.8% nla Upper sa.o�io 3.0°/a %,�% 5.7% � �.�% nla' d ✓ ✓ ✓ ✓ Statisticaliy Significant Difference ✓ f ✓ ✓ ✓ The upper and lower confidence intervals froxn both the Septcmbez and 4ctober Monday single stream pilot routes were signifcantly different tLtan those of the July (pze-pilot) dual stream D1-Q0253-10101-0101 � 070001 j 135U0 P:11350U Ramsey Co. 2003�RTA1lZosevillelFA\B1544 - Final Data P.oalysis