The most likely population parameter is 0.68
What is sample proportion?
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 P . It has a mean μP and a standard deviation σP .
For large sample
The sample proportion is approximately normally distributed, with mean μP=p
Suppose we have a population of 1000 people & we want to analyze it.so it is not possible for us to analyze such large population , so we take a small sample which is unbiased & represents the population. we choose a parameter on the basis of which we analyze them & it should be as low as possible for both the sample & population.
As it is mentioned above for large sample proportion is approximately as normally distributed so population parameter is also same as sample proportion = 0.68
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