Mathematics, 09.12.2021 03:50 bryan1528489
The article reported that 2.6% of college graduates were unemployed in 2008 and 4.6% of college graduates were unemployed in 2009. Suppose that the reported percentages were based on independently selected representative samples of 500 college graduates in each of these 2 years. Construct and interpret a 95% confidence interval for the difference in the proportion of college graduates who were unemployed in these 2 years.
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The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to
Answers: 3
The article reported that 2.6% of college graduates were unemployed in 2008 and 4.6% of college grad...
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