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

question 22

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 $98 \%$ ?

• A) cannot be determined
• B) \(36.5 < \mu < 49.5\)
• C) \(38.4 < \mu < 47.6\)
• D) \(37.6 < \mu < 48.4\)