Question

A y u dents inga standards prosty sang the long requ e the students paigos sudying engineering intolege stro dendet ca 1700 d e SAT de planning to study erreing Cardamo The confidence internalia Round to the decimales - de

Answer 1

Istution Given We have to find confidence interval We know that from the given problem to pa r te CI - (P, ~Px) + Zone SE pipe @ Given data n = 1068000 n2 = 1476000 Pu= 0.095 f2 = 0.092 20= 1-P. Q2 = al-P2 91-1-0.095 q =0.905 22 = 1-0.092 22 = 0.908 SEPPE 0.095 %0.905 SEP,- Pq = | 0.092 X 0.908 1068000 16000 SEP,-P2 10.085975 . 1068000 0.083536 1476000 Sep-P2 = 18.05.2008 +5.6596x1018 SER_R = 5 13.1096.7108 SEP.-P2 = 5.7026 xio SER+P = 0.00031 . 40% of Zo Zoos = 1.645 Pi- B = 0.095 -0.092 = 0.003

We know that Margin of Error = Z SE P.-P2 Margin of Erman 1.645 x 0.00037 Margin of Error = 0.000 6 Substitute the valies in equation o CI = 0.003 + 0.0006 Lower limet = 0.003 -0.006 upper upper limit = limit= 0.003+ 0.006 0.009 lower limit = -0003 The confidence interval 0.009 is -0.003 < P- Pg <