统计学第二版课后答案

1、 第 1章 绪论（略）第 2章 统计数据的描述 ） %ABCDE ） 5957433） ）99 ）46196 ）25256633331 81 1 2 3 3 3 4 5 5 5 8 8 9 90 0 1 1 1 1 2 2 2 3 3 4 4 5 5 6 6 6 7 7 8 8 8 8 9 90 0 1 1 2 2 3 4 5 6 6 6 7 7 8 8 8 90 0 2 2 3 3 5 6 7 7 8 8 90 1 2 2 5 6 7 8 9 93 5 61 4 7 68472 数据个数013442576788669603ABAA 各城市相对湿度箱线图954535北京 长春 南京 郑州 武汉

2、 广州 成都 昆明 兰州 西安Median value）x Q Q 。LU）s 21.17（ x s116.482.12（。） xs 2.27 xs；。4.20.024；v172.1s30.032；幼儿组身高的离散系数：vs第 3章 概率与概率分布设P()。A P()(10.2)(10.1)0.648 P(A)1P(A)10.648 0.352设ABP(BP(A)P(B| A) 设 1 P(BP(A)P(B | A) P(A)P(B | A)第1第2 设P(AB) P(B) P(B| P() P() 设 5A4( A ， |A 55P(A)P(B| A)P(A| BP(A)P(B| A) P(

3、A)P(B| A) 令A A A BA ，1231A ， A A A A 23123P(BP(A )P(B| A ) P(A )P(B| A ) P(A )P(B| A )）1122330.450.030.0135）P(A | B0.350630.25 0.040.30 0.050.45 0.03 0.0385。0123=x)i X ) 1/2 n p pn和，X X 。PP(X 150)P(ZP(Z 1.6667)5或 K| X 200| KP(| X 200 K) |Z | 0.93030KZ 0.95。30设X XX 02 2)1 P(X 2)1 Ck0.2k0.86kP(X6k0第 4

4、章 抽样与抽样分布 2 1 , 0 , 1 第 5章 参数估计 ） ）0.79。xx2.14 。 。 。d 1.75 s 2.63。5.10），d5.11。5.126 。 。 。 。第 6章 假设检验 : 1035 H : 。H，01: 0.04 H : 0.04。 H ，01: 65 H : 。 H，01 x zs/ n zH ；0zz H 。0H 。z0H 。z0H 。z0 H 。20 H 。z0 H 。t0 H 。z0H 。F06.14t-: 1 20t t 7t t-: 1 20t t t F- 1 2F F 第 7章 方差分析与试验设计 4.6574 F 8.02150.0117.0

5、684 F 3.88530.0409 0.01 F F或P value0.0003 0.05或P valuex x ABx x ACx x BC FF 1.478 F 3.554131或Pvalue0.245946 0.05有54种不同的施肥方案，在5种48FF 7.2397 F 3.2592或Pvalue0.0033 0.05)0.05 9.2047 F 3.4903或Pvalue0.0019 0.05 0.0727 F 6.9443 0.9311 0.05(或P value FF0.05 3.1273 F 6.9443或Pvalue0.1522 0.0510.75 F 5.14320.01

6、04 0.05 F或P valueF 3 F 5.9874或Pvalue0.1340 0.05F1.75 F 5.1432或Pvalue0.2519 0.05第 8章 相关与回归分析r 0.948138XYtr n2 0.948138 102 2.681739t 8.4368510.3178591r21.9481382tt 为，22 r t ” ” 明 0tr n2 0.34239 312t 1.96241r1(0.34239)22 0.05查t时，t 2 0.1取t 2 0.05t t 0.05 与 2 0 t t 0.1 0.1 2 0 X Y X ui12iiYXii1961Y )i 1

7、01/次YX Y X ui12iiYXii 。Y i 由Y X X Xi2i3i3i , , , t 、1234(224) 2.101 tY0.025(41,224)3.16由 F0.05 R265965/660420.9988和对Y151R210.9988)0.998615310/(k /2 F /(nk)FF 和Y和Y1 Y和XX 和X Y对、X 、X 2323Y X X 3.71249EX23ii R R 22 0.05(124) 2.306 t t t 0.025t 。 R R,22 0.05 F=98.60668 F F (41,124) 4.07H : 、 00.050234X 、

8、X Y23（ RR2 0.9736692或tt 0.01(124)3.3554tt0.005 0.01 t H : 00j 和YY对XyY 0.314xiit）R2R2 307.9693yex11第9章 时间序列分析 =321 1）99n 2nn=/=10%) 8.2%) 6.8%) 1 3.31861 2.3186 231.86%55510%) 8.2%) 6.8%) 155515300.0833) 52.509712%) 10%) 8%) 259.12%343 259.12% 1 9.9892%5006%) 561.8）2144y y142.5，4jj1105%142.5149.625 Y

9、t第t11Y 0.3650.19311 2.488元T ）一季度二季度三季度四季度一季度二季度三季度四季度一季度二季度三季度四季度一季度2001年2002年2003年9.92510.4511.22512.4513.987515.67517.0517.837518.262514.77516.57517.52518.1518.37518.218.412二季度三季度四季度2016.918T 0.63995t）t鲜蛋销售量13.113.97.9预测 鲜蛋销售量9.3323529419.97220588210.6120588211.2519117611.8917647112.5316176513.171

10、4705913.8113235314.4511764715.0910294115.7308823516.3707352917.0105882417.6504411818.2902941218.93014706一季度二季度三季度四季度一季度二季度三季度四季度一季度二季度三季度四季度一季度二季度三季度四季度1.1117399231.0816792311.1331161530.9239873290.95086424516.91816T 0.63995t。t季度1.4037190.9081921.0102981.0816791.1009721.0973011.3938740.9176791.15962

11、91.1331161.1510751.1472370.7444360.736441.0171080.9239870.8554930.8526410.9508640.9058420.9028224.013381400000季节比率% Y T StttKL17 Y T S 0.63995171 Y T S 0.639952 Y T S 0.639953 Y T S 0.639954:131 月2 月3 月4 月5 月6 月0.91957 月8 月9 月季节比率0.97220.98511.04071.03501.07651.0958季节比率%0.91950.78680.99311.00291.028

12、81.06370.97220.98511.04071.03501.07651.09581.00002 月3 月4 月5 月6 月7 月8 月9 月10 月11 月12 月平均6.5746.538256.800256.92256.317208123456789 Jan-00Feb-00Mar-00Apr-00May-00Jun-001234564.783.975.075.125.275.455.1314Jul-00Aug-00Sep-00Oct-00Nov-00Dec-00Jan-01Feb-01Mar-01Apr-01May-01Jun-01Jul-0174.955.035.375.345.5

13、45.445.184.615.695.715.906.055.655.766.146.146.476.556.465.626.967.127.237.436.786.767.036.857.037.226.825.687.387.407.607.957.197.357.767.838.178.475.175.225.275.325.375.435.495.555.625.695.775.875.976.066.186.296.406.516.606.686.746.806.856.896.916.936.966.987.027.067.107.157.237.317.4189101112131

14、4151617181920212223242526272829303132333435363738394041424344454647485.115.145.205.255.305.355.405.465.525.585.655.735.825.936.016.126.236.356.466.556.646.716.776.826.886.916.916.946.977.007.047.087.127.197.277.367.46Aug-01Sep-01Oct-01Nov-01Dec-01Jan-02Feb-02Mar-02Apr-02May-02Jun-02Jul-02Aug-02Sep-0

15、2Oct-02Nov-02Dec-02Jan-03Feb-03Mar-03Apr-03May-03Jun-03Jul-03Aug-03Sep-03Oct-03Nov-03Dec-0315147036925814111122233tTi剔除长期趋势1467.0672474.0737481.0802488.0867495.0932502.0997509.1062516.1127523.1192530.1257537.1322544.1387551.1452558.1517565.1582572.1647579.1712586.1777593.1842600.1907607.1972614.2037

16、621.2102628.2167635.2232642.2297649.2362656.24271.0231930.8378441.0545021.0494041.0644461.0854420.9717030.9736251.0255791.0063651.0306590.9995610.9398610.8257611.0062670.9970911.0186971.0317690.9523180.9595281.0110390.9996681.0410321.0431111.0164930.8756991.0715671.0849642345654578910111213141516171

17、819202122232425262728Aug-84Sep-84Oct-84Nov-84Dec-84Jan-85Feb-85Mar-85Apr-85646.7655.3645.7562.4695.7712162930313233343536373839404142434445464748663.2492670.2557677.2622684.2687691.2752698.2817705.2882712.2947719.3012726.3077733.3142740.3207747.3272754.3337761.3402768.3467775.3532782.3597789.3662796

18、.37271.0902391.1088311.0010890.9879161.0169610.9814090.9971811.0141870.9480030.7814871.0059810.9990271.0164221.0536450.9443870.9563391.0010921.0001791.0343741.064075Aug-86Sep-86Oct-86Nov-86Dec-86734.8776.2782.5816.5847.4季节比率%1.0231930.8378441.0545021.0494041.0644461.0854420.9717030.9736251.0255791.0

19、063651.0306590.9995610.9398610.8257611.0062670.9970911.0186971.0317690.9523180.9595281.0110390.9996681.0410321.0431111.0164930.8756991.0715671.0849641.0902391.1088311.0010890.9879161.0169610.9814090.9971811.0141870.9480030.7814871.0059810.9990271.0164221.0536450.9443870.9563391.0010921.0001791.03437

20、41.0640750.9818880.8301981.0345791.0326221.0474511.0699220.9673740.9693521.0136680.9969051.0258121.0302342 月3 月4 月5 月6 月7 月8 月9 月10 月11 月12 月171 6 1 6 1 6 1 6 1 61 1 2 2 3 3 4 4第 10章 统计指数21242039.222812196.82039.22281q p1q pp q；L q104.16%, L 107.73%001p q00p00p qq p1P 103.83%, P 107.39%。111q p02196.8 pq2124qp101；104.16% 103.83% 103.99%；E 103.99%Fqq 2039.2 2196.8 104.16%103.83%。B 104.00%2q94500117100125550q zq p。P q92.83%, P93.27%1q z11q p1101800q01012196.8i p qp q；A 0 107.73%p0p qH1p q12039.2pp0011ipGp qi107.01%。p q0p000p；104.16%107.39%111.86% ；84.8157 241.8。L P Vqp36012%4