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As part of a study of the treatment of anemia in cattle, researchers measured the concentration of seleni- um in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year. The cows were all the same breed (Santa Gertrudis) and had borne their first calf during the year. The mean selenium concentration was 6.21 µg/dl and the standard deviation was 1.84 µg/dl.16 Construct a 95% confidence interval for population of prematurely born infants who receive intravenous-feeding solutions?

(c) Does this interval indicate that the mean IQ of the sampled population is below the general population average of 100?

Microeconomics, Economics

  • Category:- Microeconomics
  • Reference No.:- M91725259

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