樣本均數(shù)的抽樣誤差與置信區(qū)間-wenkub
2023-07-11 10:07:51 本頁(yè)面
【正文】 均數(shù)的分布 從正態(tài)分布總體抽樣的實(shí)驗(yàn)結(jié)果原正態(tài)總體N(, )；直方圖是樣本均數(shù)的分布（Luo: 這里橫坐標(biāo)為，若改為便是誤差分布—圖的形狀不變）n=5 n=10 n=30(a) (b) (c)表3_2實(shí)3_1a 從N(, )中隨機(jī)抽樣, 樣本量為5, 100份獨(dú)立樣本的均數(shù)、標(biāo)準(zhǔn)差和總體均數(shù)的95%置信區(qū)間(單位：1012 /L)樣本號(hào)均數(shù)標(biāo)準(zhǔn)差95%置信區(qū)間樣本號(hào)均數(shù)標(biāo)準(zhǔn)差95%置信區(qū)間1.5688, 51.4006, 2.3470, 52.5487, 3.5763, 53.3732, 4.5949, 54.3524, 5.4005, 55.5866, 6.8186, 56.3504, 7.4502, 57.6869, 8.8225, 58.5232, 9.5964, 59.2794, 10.4496, 60.5823, 11.5683, 61.7083, 12.3401, 62.5793, 13.6648, 63.4419, 14.6274, 64.2818, 15.6886, 65, 16.3091, 66.7191, 17.4223, 67.4361, 18.4083, 68.5873, 19.5875, 69.4892, 20.5340, 70.3353, 21.2852, 71.4309, 22.4517, 72.6880, 23.4333, 73.4301, 24.3711, 74.6411, 25.4742, 75*.3927, 26.5349, 76.5487, 27.4778, 77.3930, 28.3818, 78*.2052, 29.6289, 79
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