684 0,224 ns 2 9 9-10 9 χ² =4,866 0,301 ns 2 10 10-11 10 χ² =2,171 0,704 ns 2 11 11-12 x χ² =6,635 0,156 ns 2 16 16-9 9 χ² =2,595 0,628 ns 3 19 19-20 x χ² =3,583 0,465 ns 3 20 20-21 x χ² =19,071 0,001 [...] *** 3 21 21-22 x χ² =13,204 0,010 ** 3 22 22-23 x χ² =2,959 0,565 ns 3 23 23-24 x χ² =6,384 0,172 ns 3 24 24-17 x χ² =20,916 0,000 *** 4 25 25-26 26 χ² =18,556 0,001 *** 4 26 26-27 26 χ² =12,343 0,015 * [...] χ² =16,651 0,002 ** 1 2 2-3 2 χ² =17,668 0,001 *** 1 3 3-4 4 χ² =7,911 0,095 ns 1 4 4-5 4 χ² =5,436 0,245 ns 1 5 5-6 6 χ² =13,301 0,010 ** 1 6 6-7 6 χ² =7,314 0,120 ns 1 7 7-8 x χ² =8,238 0,083 ns 1 8