Wiley Publications has determined that out of a sample of 5,771 of its publications for 2012, 2,491 of them had been pirated online in some form. What is the estimate of the population proportion? What is the standard error of this estimate?

Question 7 options:

1)

Estimate of proportion: 0.432, Standard error: 0.0065.

2)

Estimate of proportion: 0.568, Standard error: 0.0065.

3)

The true population proportion is needed to calculate this.

4)

Estimate of proportion: 0.568, Standard error: 0.0001.

5)

Estimate of proportion: 0.432, Standard error: 0.0001.