Determine the point estimate of the population proportion, the margin of error for the following confidence interval, and the number of individuals in the sample with the specified characteristic, x, for the sample size provided.
Lower
boundequals=0.1290.129,
upper
boundequals=0.5410.541,
nequals=12001200
The point estimate of the population proportion is
nothing.
(Round to the nearest thousandth as needed.)
The margin of error is
nothing.
(Round to the nearest thousandth as needed.)
The number of individuals in the sample with the specified characteristic is
nothing.
(Round to the nearest integer as needed.)
1)
The point estimate of the population proportion=(upper limit+lower limit)/2
=(0.541+0.129)/2
=0.335
2)
The margin of error is =(upper limit-lower limit)/2 ==(0.541-0.129)/2 =0.206
3)\number of individuals in the sample with the specified characteristic is=np
=1200*0.335
=402
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