Cattle are classified according to age (young, medium, and old) and as to 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
Null hypothesis being tested is:
A) P(grade and age) = P(grade) P(age)
B) 
C) Grade and age classifications are dependent
D) Age depends on grade
Correct Answer:
Verified
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