Express the confidence interval (0.070, 0.126) in the form of

Express the confidence interval (0.070, 0.126) in the form of p-E

Solution 1

Let's find E

2E = (0.126-0.070)

E = (0.126-0.070) / 2

E=0.056/2

E=0.028

Solution 2

Let's find U

u = (0.126+0.070) / 2

u=0.196/2

u=0.098

Then:

CI = (u-E < p < u+E)

Replace the number according to the formula

CI = (0.098-0.028 < p < 0.098+0.028)