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Appendix B <br />Table 15 <br />Comparison of Dual Stream Bi- Weekly with Additional Education (Wed) <br />vs. Bi- Weekly Control (Friday) <br />Total Quantities Collected by Route During Pilot <br />Wednesday Friday <br />(Addt'I Educ) (Control) <br />September 9,625 10,825 <br />October 7,975 8,075 <br />Mean 8,800 9,450 <br />Standard Deviation 1,167 1,945 <br />Comparison of the Current Dual Stream Bi- Weekly <br />Method to the Dual Stream Bi- Weekly Method with <br />Larger Bins <br />The residents in the Thursday pilot area received larger curbside recycling bins (22- <br />gallon capacity compared to the original 18- gallon capacity bins). The new bins were <br />also equipped with wheels. The collection method (dual stream) and frequency (bi- <br />weekly) remained unchanged. The results are reflected below in Table 16. <br />Table 16 <br />Comparison of Dual Stream Routes During Pilot <br />Bi- Weekly with Larger Bins vs. Bi- Weekly Control <br />' hour samples were sorted from the I hursday route. <br />%Three samples were sorted from the Friday route. <br />'The totals may not equal the sum of the material categories due to rounding. <br />As shown in Table 16, the upper and lower confidence intervals of the bi- weekly, dual <br />stream with larger bins were not significantly different than the bi- weekly dual stream <br />B -14 B1605 <br />Thursday (Larger Bins) <br />Friday (Bi- weekly) Route' <br />Route' <br />(Control) <br />Statistically <br />90% Confidence <br />90% Confidence <br />Significant <br />Interval <br />Interval <br />Difference <br />Material <br />Mean <br />Lower <br />Upper <br />Mean <br />Lower <br />Upper <br />Category <br />Paper <br />63.7% <br />53.8% <br />73.7% <br />59.5% <br />53.9% <br />65.1% <br />Metals <br />5.8% <br />5.0% <br />6.6% <br />6.7% <br />6.0% <br />7.5% <br />Glass <br />19.1% <br />12.6% <br />25.7% <br />22.2% <br />14.5% <br />29.8% <br />Plastic <br />8.1% <br />4.8% <br />11.3% <br />8.6% <br />6.3% <br />10.9% <br />Contaminants <br />3.3% <br />2.0% <br />4.5% <br />3.0% <br />2.5% <br />3.5% <br />Total3 <br />100% <br />n/a <br />n/a <br />100% <br />n/a <br />n/a <br />' hour samples were sorted from the I hursday route. <br />%Three samples were sorted from the Friday route. <br />'The totals may not equal the sum of the material categories due to rounding. <br />As shown in Table 16, the upper and lower confidence intervals of the bi- weekly, dual <br />stream with larger bins were not significantly different than the bi- weekly dual stream <br />B -14 B1605 <br />