when to use unequal variance and equal variance when to use unequal or equal variance? what determines whether a t test is an unequal or equal variance when to use equal variance when to use equal and unequal variance when should one use equal variance testing when use equal and unequal variance when to use equal variance or unequal variance when to use equal variance what is considered equal variance for a cervical plating when should one use unequal or equal variance when to use an unequal or equal variance when to use unequal variance when to use unequal variance test when to use equal variance and unequal variance in plating? when to use equal variance when do you use equal and unequal variance when to use equal variance or unequal variance which variance do you use for preoperative cervical plating? what should be paired test results be based on