SOLUTION: A random sample of 200 voters is selected and 120 are found to support an annexation suit. Find
the 96% confidence interval for the fraction of the voting population favoring the
Algebra ->
Probability-and-statistics
-> SOLUTION: A random sample of 200 voters is selected and 120 are found to support an annexation suit. Find
the 96% confidence interval for the fraction of the voting population favoring the
Log On
Question 1083231: A random sample of 200 voters is selected and 120 are found to support an annexation suit. Find
the 96% confidence interval for the fraction of the voting population favoring the suit. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! phat=0.60
SE=sqrt(0.60*0.40/200)=0.0346
z(0.98)=2.055
interval width is 2.055*0.0346=0.0712
96% CI interval is (0.53, 0.67)
