Question

Select all the ways that one could correctly write a confidence interval.

( ) point estimate ± margin of error

( ) point estimate ± SE

( ) [0.035, 0.145]

( ) pˆ±1.96*SE

From what I've found is that:

Confidence intervals are also often reported as: point estimate  ±  margin of error

The confidence intervals we have encountered thus far have taken the form: point estimate  ± z* ×SE (z*= zscore)

Evaluate the CI and write in the form (___,___). ( CI=Confidence Intervals)

So all answers expect point estimate ± SE, would be correct?

Answer 1

Solution :-

All the ways that one could correctly write a confidence interval are,

1] point estimate ± margin of error

   pˆ ± E

2] Evaluate the CI and write in the form (___,___). ( CI=Confidence Intervals)

CI=Confidence Intervals =  [0.035, 0.145]

3] point estimate  ± z* ×SE (z*= zscore)

pˆ±1.96*SE

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All answers expect point estimate ± SE, would be correct? - yes