Some People Who Bought X-Game Gaming Systems Complained About Having

question 7

Essay

Some people who bought X-Game gaming systems complained about having received defective systems. The industry standard for such systems has been ninety-eight percent non-defective systems. In a sample of 120 units sold, 6 units were defective.
a.Compute the proportion of defective items in the sample.
b.
b.Compute the standard error of .
c.At 95% confidence using the critical value approach, test to see if the percentage of defective systems produced by X-Game has exceeded the industry standard.
d.Show that the p-value approach results in the same conclusion as that of part

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Definitions:

Air Brake System

A type of brake system used in large vehicles, utilizing compressed air to create the braking force.

Mechanical Force

The application of power to move or stop objects through physical contact, often quantified in terms of magnitude and direction.

FMVSS-121

The regulation governing air brake performance for heavy-duty vehicles in the United States, ensuring proper function and safety standards are met.

Governor Cut-Out Pressures

The maximum pressure at which the compressor governor stops the compressor from pumping air into an air brake system.