Votes	Average
Males	14,751	5.8
Females	2,940	6.2
Aged under 18	580	6.7
Males under 18	393	6.7
Females under 18	185	6.8
Aged 18-29	12,196	6.0
Males Aged 18-29	10,090	5.9
Females Aged 18-29	2,063	6.4
Aged 30-44	4,172	5.6
Males Aged 30-44	3,605	5.6
Females Aged 30-44	525	5.8
Aged 45+	723	5.3
Males Aged 45+	576	5.3
Females Aged 45+	139	5.2
IMDb staff	5	5.5
Top 1000 voters	333	5.1
US users	6,591	5.7
Non-US users	11,090	5.9

From these ratings (found at http://www.imdb.com/title/tt0384806/ratings) we can see that Amityville Horror appeals mainly to those under 18 up to 29. From the higher number of males voting, it is evident that we should aim to appeal to the male audience for a horror.