Question

Express the confidence interval left parenthesis 0.028 comma 0.080 right parenthesis in the form of ModifyingAbove p with caret minus Upper E less than p less than ModifyingAbove p with caret plus Upper E.

Answer 1

Solution :

Point estimate = = (Lower confidence interval + Upper confidence interval ) / 2

Point estimate = = (0.028+0.080) / 2=0.054

Margin of error = E = Upper confidence interval - = 0.080-0.054=0.026

In the form of :

- E < p < + E is,

0.054-0.026 < p <0.054+0.026