The Manager of the Quality Department for a Tire Manufacturing

question 59

True/False

The manager of the quality department for a tire manufacturing company wants to know the average tensile strength of rubber used in making a certain brand of radial tire.The population is normally distributed,and the population standard deviation is known.She uses a z test to test the null hypothesis that the mean tensile strength is 800 pounds per square inch.The calculated z test statistic is a positive value that leads to a p-value of .045 for the test.If the significance level (α)is .05,the null hypothesis would be rejected.

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Definitions:

Clutch Failure

A malfunction or breakdown of the clutch mechanism, leading to the inability to engage or disengage the engine from the drivetrain.

Clutch Brake Squeeze

The final inch or so of pedal travel as a clutch pedal is depressed toward the floor. The “squeeze” references the clamping of the clutch brake by the clutch release bearing.

Clutch Pedal

A pedal in a vehicle that disengages the transmission from the engine, allowing the driver to change gears or stop the vehicle without stopping the engine.

Guide Studs

Rods or pins used to align parts during assembly or to provide a guiding support for moving parts.