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Find the zz* values based on a standard normal distribution for each of the following. (a) An 86%86% confidence interval for a correlation. Round your

Find the zz* values based on a standard normal distribution for each of the following.

(a) An 86%86% confidence interval for a correlation. Round your answer to three decimal places. z=z= Enter your answer in accordance to the question statement

(b) A 90%90% confidence interval for a difference in proportions. Round your answer to three decimal places. z=z= Enter your answer in accordance to the question statement

(c) A 96%96% confidence interval for a proportion. Round your answer to three decimal places. z=z*= Enter your answer in accordance to the question statement

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