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QUESTION

Take a position on whether or not the total area under a normal distribution is infinite. Provide an example to support your response. 

1-Take a position on whether or not the total area under a normal distribution is infinite. Provide an example to support your response.

2-The vast majority of the world uses a 95% confidence in building confidence intervals.  Give your opinion on why 95% confidence is so commonplace. Justify your response.

  • Construct a hypothetical 95% confidence interval for a hypothetical case of your choosing. Use your own unique choice of mean, standard deviation, and sample size to calculate the confidence interval.

Select one (1) option provided below and analyze how it will influence your confidence interval:

  • The confidence changes to 90%.
  • The confidence changes to 99%.
  • The sample size is cut in half.
  • The sample size is doubled.
  • The sample size is tripled.
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