统计技术相关性及正交试验PPT学习教案

1、会计学1统计技术相关性及正交试验统计技术相关性及正交试验第2页/共25页张力张力(N)(N)卷密度卷密度(kg/m(kg/m3 3) )张力张力(N)(N)卷密度卷密度(kg/m(kg/m3 3) )1 1335.98 335.98 1616343.73 343.73 2 2336.16 336.16 1717344.63 344.63 3 3337.50 337.50 1818344.25 344.25 4 4337.46 337.46 1919344.92 344.92 5 5338.87 338.87 2020345.31 345.31 6 6338.19 338.19 2121346.

2、57 346.57 7 7339.17 339.17 2222346.80 346.80 8 8338.95 338.95 2323348.60 348.60 9 9339.58 339.58 2424348.64 348.64 1010339.20 339.20 2525349.57 349.57 1111340.85 340.85 2626349.11 349.11 1212340.78 340.78 2727349.37 349.37 1313341.97 341.97 2828349.32 349.32 1414342.88 342.88 2929350.76 350.76 15153

3、43.73 343.73 3030350.00 350.00 张力与卷密度散布图张力与卷密度散布图第3页/共25页压力压力(N)(N)卷密度卷密度(kg/m(kg/m3 3) )1 1344.04 344.04 2 2344.19 344.19 3 3346.50 346.50 4 4344.28 344.28 5 5344.33 344.33 6 6344.50 344.50 7 7344.68 344.68 8 8344.73 344.73 9 9343.60 343.60 1010344.91 344.91 1111345.02 345.02 1212346.12 346.12 1313

4、345.22 345.22 1414345.42 345.42 1515345.61 345.61 1616345.70 345.70 1717345.81 345.81 1818345.81 345.81 1919344.55 344.55 2020346.00 346.00 压力压力与卷密度散布图与卷密度散布图第4页/共25页速度速度卷密度卷密度(kg/m(kg/m3 3) )速度速度卷密度卷密度(kg/m(kg/m3 3) )200200346.25 346.25 350350346.36 346.36 210210346.84 346.84 360360346.71 346.71 22

5、0220346.99 346.99 370370346.12 346.12 230230346.13 346.13 380380346.24 346.24 240240346.13 346.13 390390346.31 346.31 250250346.20 346.20 400400346.36 346.36 260260346.33 346.33 410410346.06 346.06 270270346.44 346.44 420420346.32 346.32 280280346.98 346.98 430430346.28 346.28 290290346.15 346.15 44

6、0440346.87 346.87 300300346.55 346.55 450450346.11 346.11 310310346.89 346.89 460460346.12 346.12 320320346.20 346.20 470470346.97 346.97 330330346.09 346.09 480480346.52 346.52 340340346.61 346.61 490490346.83 346.83 速度速度与卷密度散布图与卷密度散布图第5页/共25页第6页/共25页相关系数相关系数的意义与计算的意义与计算 ： -1 -1 r r 1 1描述两个变量直线相关的描

7、述两个变量直线相关的方向与方向与 密切程度密切程度的指标。的指标。第7页/共25页iyixyiyyxixxyxiiiixyyyxxxyyTxTnTyyyLnTxxxLnTTyxyyxxLLLLr,/222222第8页/共25页正相关正相关 负相关负相关0 r 1 -1 r r|r|r1-1- /2/2(n-2)(n-2)第16页/共25页相关系数临界值（相关系数临界值（ra）表）表n-2=5% =1%n-2=5% =1%n-2=5%=1%1 10.997 1.000 1.000 16160.468 0.468 0.590 0.590 35350.325 0.325 0.418 0.418 2

8、20.950 0.950 0.990 0.990 17170.456 0.456 0.575 0.575 40400.304 0.304 0.393 0.393 3 30.878 0.878 0.959 0.959 18180.444 0.444 0.561 0.561 45450.288 0.288 0.372 0.372 4 40.811 0.811 0.917 0.917 19190.433 0.433 0.549 0.549 50500.273 0.273 0.354 0.354 5 50.754 0.754 0.874 0.874 20200.423 0.423 0.537 0.53

9、7 60600.250 0.250 0.325 0.325 6 60.707 0.707 0.834 0.834 21210.413 0.413 0.526 0.526 70700.232 0.232 0.302 0.302 7 70.666 0.666 0.798 0.798 22220.404 0.404 0.515 0.515 80800.217 0.217 0.283 0.283 8 80.632 0.632 0.765 0.765 23230.396 0.396 0.505 0.505 90900.205 0.205 0.267 0.267 9 90.602 0.602 0.735

10、0.735 24240.388 0.388 0.496 0.496 1001000.195 0.195 0.254 0.254 10100.576 0.576 0.708 0.708 25250.381 0.381 0.487 0.487 1251250.174 0.174 0.228 0.228 11110.553 0.553 0.684 0.684 26260.374 0.374 0.478 0.478 1501500.159 0.159 0.208 0.208 12120.532 0.532 0.661 0.661 27270.367 0.367 0.470 0.470 2002000.138 0.138 0.181 0.181 13130.514 0.514 0.641 0.641 28280.361 0.361 0.463 0.463 3003000.113 0.113 0.148 0.148 14140.497 0.497 0.623 0.623 29290.355 0.355 0.456 0.456 4004000.098 0.098 0.128 0.128 15150.482 0.482 0