Question

Express the confidence interval 0.75 ± 0.03 0.75 ± 0.03 in open interval form (i.e., (0.155,0.855))....

Express the confidence interval 0.75 ± 0.03 0.75 ± 0.03 in open interval form (i.e., (0.155,0.855)).

= ??

Math   Statistics-And-Probability   
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Answer #1

Solution :

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

Point estimate = = 0.75

Margin of error = E = Upper confidence interval - = 0.03

In the form of :

- E < p < + E is,

0.75-0.03 < p <0.75+0.03

0.72< p < 0.78

(0.72 ,  0.78)

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