Question

Suppose that the confidence interval (0.33,0.71) is given for a population proportion, p. Use these confidence interval limits to find the point estimate,

p , and the margin of error, E

Answer 1

The point estimate, p, is calculated by taking the average of the lower and upper confidence interval limits. The margin of error, E, is calculated by subtracting the lower limit from the point estimate and taking the absolute value.

Step-by-step explanation:

To find the point estimate, p, from the given confidence interval, we take the average of the lower and upper limits. In this case, the point estimate is (0.33 + 0.71) / 2 = 0.52.

To find the margin of error, E, we subtract the lower limit from the point estimate and take the absolute value. In this case, the margin of error is |0.52 - 0.33| = 0.19.