A large tire manufacturing company has claimed that its top line tire will average more than 80,000 miles.If a consumer group wished to test this claim,they would formulate the following null and alternative hypotheses: 
Definitions:
Synchronous Speed Calculation
Synchronous speed calculation is the process of determining the speed at which the magnetic field of an AC motor rotates, which is based on the frequency of the power supply and the number of magnetic poles in the motor.
Locked Rotor Current
The current drawn by an electric motor when the rotor is not turning and power is applied, typically higher than the running current.
Supply Voltage
The electrical potential difference provided to power an electronic circuit or device.
Synchronous Speed
The speed at which the magnetic field in an AC motor rotates, directly related to the frequency of the power supply and the number of poles in the motor.
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