Cattle Are Classified According to Age (Young, Medium, and Old) $a = 0.01$

Multiple Choice

Cattle are classified according to age (young, medium, and old) and carcass quality (grades A, B, and C) . In one study, the animals were classified as :


The chi-square statistic for testing if there is an association between age and grade was calculated. The rejection region for this test is (use $a = 0.01$ ) :

A) $X ^ { 2 } > 9.488$
B) $X ^ { 2 } < 0.207$ or $X ^ { 2 } > 14.86$
C) $X ^ { 2 } > 13.277$
D) $2.180 < X ^ { - 2 } < 17.535$