Question: true or false : If a sample has 16 observations and a 95% confidence estimate foris needed, the appropriate t -score is 1.746. true or

  1. true or false : If a sample has 16 observations and a 95% confidence estimate foris needed, the appropriatet-score is 1.746.
  2. true or false : With other factors unchanged, a higher confidence level will require a narrower confidence interval.
  3. true or false: If we want to cut the maximum likely error in half, we will have to double the sample size.
  4. True or false : The technique used to determine a confidence interval to estimate a population proportion uses the normal distribution as an approximation to the Poisson distribution.

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