How do you find the confidence interval without being given the n value.

For each question, create an approximate 95% CI and then decide whether the null hypothesis should be rejected. H0: ,u = 50 2:55 standard error of E = 1.1 {round your answers to 1 decimal place} The approximate 95% CI for ,u is :l X to E The result of the hypothesis test is: (:1 Reject Ho: because the null value is inside the 95% CI. 0 Reject HD, because the null value is outside the 95% Cl. C) Fail to reject Ho: because the null value is inside the 95% CI. 0 Fail to reject Ho: because the null value is outside the 95% CI