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Standard error, critical approach for defective units of X-game

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Some people who bought X-game gaming systems complained about having received defective systems. The industry standard for such systems has been 98% non-defective systems.

-In a sample of 120 units sold, 6 units were defective.

-Compute the standard error of

-At 95% confidence using the 'critical value approach', test to see if the percentage of defective systems by X-Game has exceeded the industry standard.

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Solution Summary

The solution computes the percentage of defective systems X-game has exceeded the industry standard. The standard error is given.

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