Question: H 0 : p = 0 . 7 8 , n = 2 1 8 H a : p > 0 . 7 8 ,

H0:p=0.78,n=218
Ha:p>0.78,hat(p)=0.8211
0.8211-0.780.78(1-0.78)2182,0.04110.17162182
0.04110.00782,0.04110.0883
z~~0.47,
H 0 : p = 0 . 7 8 , n = 2 1 8 H a : p > 0 . 7 8 ,

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