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The Three Confidence Intervals Below Were Constructed from the Same 98%98 \%

Question 4
Multiple Choice
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Multiple Choice

The three confidence intervals below were constructed from the same sample. One of them was computed at a confidence level of 90%, another at a confidence level of 95%, and another at a confidence level of 98%. Which is the confidence level at 98%98 \% ?

A) cannot be determined
B) 36.5<μ<49.536.5 < \mu < 49.5
C) 38.4<μ<47.638.4 < \mu < 47.6
D) 37.6<μ<48.437.6 < \mu < 48.4

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