EBook Problems Estim Var

EBook Problems Set - Estimating a Population Variance

Problem 1

We have discussed that the standard deviation of the distribution of sample percentages or SE(p hat) is calculated by taking the square root of

p hat * (1 - p hat)/ N , where p hat is the proportion in the sample and N is sample size

What does SE(p hat) show?

• Choose one answer.

(a) It shows the standard error of the man across repeated samples from the population.

(b) It shows the distribution of p hat for the single sample that the researcher draws from the population.

(c) It shows the standard deviation of p hat for repeated samples from the population.

(d) It shows the variation for p hat values for repeated samples from the population.

Answer

 (c)

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