**TI83** t-Betrouwbhinterval rond 2 gem. (n<30)»¬BINT2GMT¬ªá?à1+5+*BINT2GMT>*?à2+4+*»I*?à3+1+*qqqqqqqqqqqqqqqq*?à4+1+*BETRBH°b$INTERVAL*?à5+1+*ROND)MU1qMU2*?à6+1+*MET)bjb)EN*?à7+1+*b-k30)EN)b0k30*?à8+10+*ENTER*?Ø?á?à1+1+*BjBTROUWBAARHEID*?à2+1+*jjjjjjjjjjjjjjjj*?à3+1+*INVOER)STKPROEF>*?à4+1+*b++b,+b-)EN*?à5+1+*b.+b/+b0*?à6+1+*UITVOER)INTERVAL*?à7+1+*ROND)b+qb.*?à8+10+*ENTER*?Ø?á?à1+1+*BETRBH)b$INTRVAL>*?à2+1+*b+qb.)pq)b$‚c-E*?à3+1+*MET)c-E j*?à4+1+*ABpCƒb-pb0q2*?à5+1+*Ajb-pb0ƒb-b0*?à6+1+*Bjb, b-q1*?à7+1+*Cjb/ b0q1*?à8+10+*ENTER*?Ø?á?Þ*INVOER)STEEKPR>*?Ü*GEM)b+j*+G?Ü*SD)b,j*+S?Ü*AANTL)b-j*+N?Ü*GEM)b.j*+H?Ü*SD)b/j*+T?Ü*AANTL)b0j*+M?Þ*B)IS)BIJV):95*?Ü*BETRBH)Bj*+B?ÎBl1>:01BC?á?»IG+S+N+H+T+M+B+1?±Æ