Test scores of two independent samples of students from UA and UB on a national examination are given below. At a .05 level of significance, test to determine if there is a significant difference between the variances of the two populations. 
Definitions:
Ackerman Arm
Steering component that connects a tie rod end to the steering knuckle.
Left-hand Threads
A type of thread on bolts or screws that tightens counterclockwise, opposite to the more common right-hand threads.
Toe Specification
The specified angle alignment of wheels concerning the longitudinal axis of a vehicle, impacting directional stability and tire wear.
Commercial Truck Steering Systems
The assembly in commercial vehicles responsible for directing the path of the vehicle, typically requiring specialized mechanisms due to the vehicle's size and weight.
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