Question
The formula used to compute a large-sample confidence interval for p is What is the appropriate z critical value for each of the following confidence levels?
The formula used to compute a large-sample confidence interval for p is _____
What is the appropriate z critical value for each of the following confidence levels? (Round your answers to
two decimal places.)
(a) 90%
(b) 99%
(c) 82%
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Koala Tutor
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Got a question with my answer?
(a) For a 90% confidence level, the appropriate z critical value is 1.645.
(b) For a 99% confidence level, the appropriate z critical value is 2.576.
(c) There is no direct z critical value for an 82% confidence level. The closest z critical value is 1.380, which corresponds to a 81.5% confidence level.
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