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

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