Question: Initially, a confidence interval is estimated without the finite population correction factor. Upon realizing the mistake, the finite population correction factor is applied. The estimated

  1. Initially, a confidence interval is estimated without the finite population correction factor. Upon realizing the mistake, the finite population correction factor is applied. The estimated interval with the finite population correction factor is comparatively smaller. T/F?
  2. For the same confidence level and size of sample, a population mean confidence interval will be broader when the sample standard deviation s is large than when it is small. T/F?
  3. In a production, the average length of nine randomly selected bolts is 3 inches with a standard deviation of 0.3 inches. The range of values representing a 95% confidence interval for the average length of the bolts is: a. 2.308 to 3.692 b. 2.804 to 3.196 c. 2.769 to 3.231 d. 2.814 to 3.186 e. 2.412 to 3.588

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