Your median is incorrect and should be the average of the 30th and 31st values when placed in numerical order; intervals should be written with the least value on the left; the 95% CI has some decimal (rounding) issues; in the text on page 8, you stated the 95% and 99% CI's as being the same; steps 5 and 6 on page 10 need to rethinking;
see example 4 in the Mod 3 course materials titled Hypothesis Testing Exaplined and Explored
Attachment:- rwheeler_course_project_phase_4_031417_1.rar