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Calculate a confidence interval for true standard deviation

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Reference no: EM132858026

Question: Investigators measured the heights of 29 daughters, aged 5 years, of Type I diabetic women. The sample mean height was 105.9 cm, and the sample standard deviation was 4.8 cm.

  1. Calculate a 95% confidence interval for
  2. The mean height of 5-year-old females in general is 107 cm. Is there evidence that 5-year-old daughters of Type I diabetic women have a different true mean height from 5-year-old females in general? Explain.
  3. Calculate a 95% confidence interval for the true standard deviation of height of 5-year-old daughters of Type I diabetic women.

Reference no: EM132858026

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