Question: Confidence Intervals Identify the z-critical value needed for a given confidence interval. What value of z* should be used to construct a 99% confidence interval

Confidence Intervals

Identify the z-critical value needed for a given confidence interval.

What value of z* should be used to construct a 99% confidence interval of a population mean? Answer choices are rounded to the hundredths place.

  • a.)
  • 1.28
  • b.)
  • 1.96
  • c.)
  • 1.65
  • d.)
  • 2.58

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