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Elena L [17]
3 years ago
11

A random sample of 133 people was taken from a very large population. Sixty-five of the people in the sample were females.The st

andard error of the proportion of females is (Round your answer to 4 decimal places.)
Mathematics
1 answer:
rjkz [21]3 years ago
6 0

Answer: 0.0433

Step-by-step explanation:

Given: Sample size : n= 133

The number of females in sample = 65

Then the proportion of females : P=\dfrac{65}{133}

The formula to calculate the standard error of the proportion is given by :-

S.E.=\sqrt{\dfrac{P(1-P)}{n}}

\Rightarrow S.E.=\sqrt{\dfrac{\dfrac{65}{133}(1-\dfrac{65}{133})}{133}}\\\\\Rightarrow\ \Rightarrow S.E.=0.0433444676341\approx0.0433

Hence, the standard error of the proportion of females is 0.0433.

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