For fixed n and p̂, increase confidence from 90% to 99%.
Width changes by what factor approximately?
- Acheck_circle
1.57x wider
- B
Same width
- C
2x wider
- D
0.64x wider
Explanation
2.576/1.645 ≈ 1.57. Width grows by this factor.
Constructing a Confidence Interval for a Population Proportion
AP Statistics· difficulty 3/5
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