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please help, In 1992, the FAA conducted 24,000 pre-employment drug tests on job applicants who were to be engaged in safety and security-related jobs, and found that 800 were positive.


(a) Construct a 95 percent confidence interval for the population proportion of positive drug tests.

(b) May you assume that this is a normal distribution? describe why. (Check the normality of your proportion!)

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M9110192

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