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patriot [66]
3 years ago
15

The proportion of items in a population that possess a specific attribute is known to be 0.45. a. If a simple random sample of s

ize nequals100 is selected and the proportion of items in the sample that contain the attribute of interest is 0.48​, what is the sampling​ error?
Mathematics
1 answer:
yanalaym [24]3 years ago
4 0

Answer: 0.05

Step-by-step explanation:

  • Sampling error is the error occurs by considering sample for study instead of entire population.

Given : The proportion of items in a population that possess a specific attribute is known to be 0.45.

Sample size : n= 100

Sample proportion of items in a population that possess a specific attribute : \hat{p}=0.48

Now, the formula to find the sampling error :

\text{Sampling error} =\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

\text{Sampling error} =\sqrt{\dfrac{0.48(1-0.48)}{100}}

=\sqrt{\dfrac{0.48(0.52)}{100}}\\\\=\sqrt{0.002496}\approx0.05

Hence, the sampling​ error =0.05

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