Statistical Hypothesis Testing: Two-Sample T-Test and Z-Test - Prof. Nguyen, Schemes and Mind Maps of Statistical Physics

Download Statistical Hypothesis Testing: Two-Sample T-Test and Z-Test - Prof. Nguyen and more Schemes and Mind Maps Statistical Physics in PDF only on Docsity! BAI TOAN KIEM DINH SO SANH TRUNG BINH 2 TONG THE Dang bai Gt Ho | GtH1 | Mién bac bo Wa Tiéu chuan kiém dinh M@ réng: X,Y co phan phdi bat ky & ni, n2 >30 1|- X1,X2 cé phan phéi Chuan. arzay | (-0;-2,) U(Zas +29) - Da biét phuong sai tong MBB & TCKD: thé oy; 0,”. ajay | ar<a2 | (-; -Z2a) tuong ty - 2 mau dug lay déc lap. z- test a1 > a2 (Z2a3 +) 2 (-%; -t (VC -t, (vi +2) - X1,X2 cd phan phdi Chuan. a1 4 a2 $ $ - Chua biét o,’;0,” nhung ay=az biét 0,’ + 6,’. ar<a, | (-; —t,(v)) - 2 mau dug lay déc lap. (t,(v); +0); ve N’. ai >a, t-test MBB: 3 (-0; -t,(n, +n, -2))U( -t (n, +n, -2 }, +2) (-09; -Z,) U (Za3 +) - X1,X2.cé phan phdi Chuan. a,#a, 7 7 wat Dae 2 = ae pets: 302° nhuing ai=a (-00; -Zz4) tai 0; -t a) - 2 mau dug lay déc lap. asa | ( a(™ +2, -2) (Zooj +0) & day phuong sai gdp: 20 2 2 ai >a, ( -t,(m +n, -2); +) | a (, -)S; + = DS, t-test ° n,+n,-2 4 (0; -t,(n- IU -t,(n- 1); +2) D - X1,X2 cd phan phdi Chuan. a 0 $ $ -TCKD: Z,=5-Nn - Chua biét o1°;0,”. ara fa<o | ( —t,(n-1)) D D - 2 mau phy thudc tuong tng Tas vn -MBB: theo cap. hay I D (-2; Za) U (Za5 +2) - Bat D=X1-X2 a> 0 (ta(m-1)s +2) (-2; 22a) t-test ap=0 (Zoos +) Mé@ rng: Néu trong dang (1) gia thiét KD Ho: CuuDuongThanCong.com . Twong tu voi cdc dang con lai. https://fb.com/tailieudientuentt