I keep getting the incorrect answer to this problem, so I need to know how to wo
ID: 3290513 • Letter: I
Question
I keep getting the incorrect answer to this problem, so I need to know how to work the equation. I am coming up with 0.017398 and 0.01944. Can you break down the steps please?
I first subtracted 0.1091 from 1 and got 0.891 , then multiplied that by 0.109= 0.097119 and divided that by 1100 to get 0.00008829 and took the squareroot of that to arrive at 0.009396 and multiplied that by 1.749 to get 0.016433. What am I doing wrong?
20-P) 0.1091x(1-0.1091) 1100 = 0.1091±1.96× -20.05/2 = 0.1091±0.0184 (0.0907,0.1275) Comment>Explanation / Answer
z_.05/2=1.959964
sqrt(p*(1-p)/1100)=0.009400058
.1091+1.96*0.009400058=0.1275241
.1091-1.96*0.009400058= 0.09067589
what you did wrong:multiplied that by 1.749
you should multiply by 1.95996