An appropriate 95% confidence interval for µ has been calculated as (-0.73, 1.92) based on n = 15 observations from a population with a Normal distribution. If we wish to use this confidence interval...

Please look at the following picture. I know that the answer is B, however, I need to justify my answer. I need help justifying my answer with 1-3 sentences.

Extracted text: An appropriate 95% confidence interval for µ has been calculated as (-0.73, 1.92) based on n = 15 observations from a population with a Normal distribution. If we wish to use this confidence interval to test the hypothesis Ho: µ = 0 against Ha: µ # 0, which of the following is a legitimate conclusion? (a) Reject Ho at the a = 0.05 level of significance (b) Fail to reject Ho at the a = 0.05 level of significance (c) Reject Ho at the a = 0.10 level of significance (d) Fail to reject Ho at the a = 0.10 level of significance (e) We cannot perform the required test since we do not know the value of the test statistic