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1、 G.17:?a a 2000 ,.a a a ()$3,000 499$3,000-$4,999 530$5,000-$9,999 562$10,000-$14,999 718$15,000 8113,120$3,000 16$3,000-$4,999 17$5,000-$9,999 18$10,000-$14,999 23$15,000 26100$3,000 .16$3,000-$4,999 .17$5,000-$9,999 .18$10,000-$14,999 .23$15,000 .261.00 -,;,-2000 ,.2000 ,.4 3 2 5 3 3 1 526 A B,200
2、 A B196150198160199176199181200192200200200201201202201213201224202240202261 a .=:150 160 170 180 190 20021054321 150 160 170 180 190 20021054321 2000 ,.2000 ,.2000 ,.2000 ,.:2000 ,.3 .2.14%13.59%34.13%34.13%13.59%2.14%:8511510014570 -a a =1.0 ,1 68%1 95%2(1.96)3 A 01-1-22z Z z 2000 ,.a -2 -1 0 1 2
3、mmssX 2000 ,.mxs _CXS 2000 ,.2000 ,.2000 ,.2000 ,.2000 ,.2000 ,.2000 ,.2000 ,.()2000 ,.2000 ,.-a ,a 95 (Z)a (E)$2.00.$29.00.2000 ,.-2000 ,.-,(E)$4.00,.2000 ,.-2000 ,.99%1389=265.372=253.742=2)29)(57.2(n2=347=6325.182=453.742=4)29)(57.2(n2=2000 ,.2000 ,.a 2000 ,.Sample Size for a ProportionCopyright 2000 by Harcourt,Inc.All rights reserved.谢谢3月-2302:10:2802:1002:103月-233月-2302:1002:1002:10:283月-233月-2302:10:282023/3/182:10:28演讲完毕，谢谢观看！