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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 ninety-eight percent non-defective systems. In a sample of 120 units sold, 6 units were defective.

a. Compute the standard error of p.

b. 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.

c. Show that the p- value approach results in the same conclusion as that of part b.

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Category:- Statistics and Probability
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