A one-sample t-interval has x-bar = 8.0 and reports an SE = 0.5 with t* = 2.0.
The CI is:
- A
(8.00, 9.00)
- B
(7.50, 8.50)
- Ccheck_circle
(7.00, 9.00)
- D
(6.00, 10.00)
Explanation
ME = 2 * 0.5 = 1. CI = 8 ± 1 = (7, 9).
Constructing a Confidence Interval for a Population Mean
AP Statistics· difficulty 2/5
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