Answered: Which of the following is a correctly… | bartleby

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**Question:**
Which of the following is a correctly reported confidence interval?

**Options:**
- (3.782 +/- 0.02) s
- (4 +/- 0.1) s
- (3.782 +/- 0.002) s
- (5.27 +/- 0.23) s

**Explanation:**
A correctly reported confidence interval should maintain consistency in the number of decimal places between the anchor value and its margin of error. The margin of error should typically reflect the precision of measurement.

Expert Solution

Step 1

We can see in option 1:

The uncertainty is in hundredth part (because0.02) therefore writing number beyond 100th place is meaningless.

Therefore first option is incorrect.

similarly we can see 2nd and 4th options are also incorrect.

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