Hypothesis testing! Reject Ho or not??

Yesterday night, one of my housemate brought home a person, her friend to stay overnight. I only realised this person's existence when I got out of my room to the toilet during midnight. When I opened my room's door, I saw this person. For your information, I did not wear my spectacles at that moment. So, I thought that person was my other housemate. I suddenly felt stranged when this person waved and said "hi!" to me. I was wondering, why la my housemate acting so strange since I've been seeing her for the whole day! But when I walked closely to this person and I realised this person is not my housemate. My first sight when I looked at this person from far, without my specs(actually very near only...she was coming out from the toilet), I thought is a "she". When she started to open her mouth and talk, I thought this person is a "he". This make me so curious about it. The next day, I met this person again. This person came back with my housemate and I'm sure this will be the second night staying here. This person talked to me just now and it is the second time I really thought is a "he"!(This person is just next door while I'm blogging here..hehehe). Since I was mentally tired just now, I decided to take a rest. At this moment, suddenly I thought of investigating this person's gender! Sounds weird but it really helps me to relax myself while having high blood pressure seeing those lecture notes! Muahahhaha!!! So, I went to do some investigation! What I've done, I could not tell you here but you may ask me personally or guess it yourself and let me know later. (I have a reason for this~)

Is not that I've no better work to do, but I really want to know this because my housemate is a girl! This is so interesting! Bared in mind, this is just for fun because this is my very first time that I can't identify a person's gender more than 24 hours till now. Maybe I should take some pictures of this person but I don't think this is right...by law, right? (Hak manusia) Ermm, this is my hypothesis testing!

Let n be the gender.
I Ho : n=This person is a lady.
H1 : n=THis person is a boy.

II z=Boy-cut, walks like a boy, speaks like a man, deep voice

III P-value= Size of the body like a girl, my first sight(without my specs), "she is a girl"

IV P-value<>u?

V Do not have evidence to reject H0 or reject H0??