Use the Given Degree of Confidence and Sample Data to Construct

question 13

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean $\mu$ Assume that the population has a normal distribution. n=30 , $\bar { x } = 84.6$ s=10.5,90 % confidence

• A) \(79.32 < \mu < 89.88\)
• B) \(81.36 < \mu < 87.84\)
• C) \(81.34 < \mu < 87.86\)
• D) \(80.68 < \mu < 88.52\)

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Definitions:

Seized Caliper

Refers to a brake caliper that has become stuck in a position, either applied or released, leading to impaired braking performance.

Caliper Piston

A component of a disc brake system that moves within the caliper to press brake pads against the rotor, slowing the vehicle.

Seating Pads

Cushioned pads placed on chairs or seats to enhance comfort by providing additional support and softness.

Bench Bleeding

The prefilling and purging of air from a master cylinder before installing it on the vehicle. This reduces the amount of bleeding that needs to be done on the vehicle.