What is the confidence interval when the last value to 27 is changed, and its recomputed?

Change the last value to 27 and re-compute the confidence interval. The numbers now are: 21, 28, 33, 34, 25, 26, and 27 ()Lower - 3.52; Upper - 41.929 ()Lower - 23.52; Upper - 31.909 )Lower - 22.32; Upper - 35.861 )Lower - 19.73; Upper - 51.994