Question
In manufacturing processes, it is of interest to know with confidence the proportion of defective parts. Suppose that we want to be reasonably certain that
In manufacturing processes, it is of interest to know with confidence the proportion of defective parts. Suppose that we want to be reasonably certain that less than 5% of a company's widgets are defective. To test this, we obtain a random sample of 300 widgets from a large batch. Each of the 300 is tested for defects, and 10 are determined to be defective, based upon the manufacturer's standards. Using = 0.01, is this evidence that less than 5% of the company's widgets are defective?State the hypotheses, check the conditions, calculate the test statistic, find the p-value,
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