Question

Express the confidence interval

(0.055,0.147)

in the form of

Modifying Above p with caret minus Upper E less than p less than Modifying Above p with caret plus Upper Ep−E<p<p+E.

Answer 1

Solution :

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

Point estimate = = (0.055+0.147) / 2=0.101

Margin of error = E = Upper confidence interval - = 0.147-0.101=0.046

In the form of :

- E < p < + E is,

0.101-0.046< p <0.101+0046