A sample of 23 European countries found that the variance of life expectancy was 7.3 years. What is the 95% confidence interval estimate for the

  • A sample of 23 European countries found that the variance of life expectancy was 7.3 years. What is the 95% confidence interval estimate for the variance of life expectancy in Europe?
  • A. 27.2 <  < 118.3
  • B. 5.6 < < 10.3
  • C. 4.4 < < 14.6
  • D. 28.9 < < 115.0

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