A simple random sample of 100 observations is taken from a population. Assume that the population proportion p = 0.5.
a. What is the expected value of the sample proportion $\hat { p }$ ?
b. What is the standard error of the sample proportion $\hat { p }$ ?

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The Answer of A simple random sample of 100 observations is taken from a population. Assume that the population proportion p = 0.5.
a. What is the expected value of the sample proportion $\hat { p }$ ?
b. What is the standard error of the sample proportion $\hat { p }$ ?

A Simple Random Sample of 100 Observations Is Taken from a Population