Out of 200 randomly sampled people, only 86 possess a specific characteristic. What is the sample proportion?
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The sample proportion is a random variable: it varies from sample to sample in a way that cannot be predicted with certainty. Viewed as a random variable it will be written ˆP. It has a mean μˆP and a standard deviation σˆP. ... In the same way the sample proportion ˆp is the same as the sample mean ˉx.
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Step-by-step explanation:
For sample size calculation of unknown population size, you can use the following formula: n= z2. [p*q]/d2), which is used to calculate the sample size of a qualitative variable in prevalence or cross-sectional studies.
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