Find the z* values based on a standard normal distribution for each of the following.           (a) An 86% confidence interval for a correlation. Round your answer to three decimal places. ±z*=±   the absolute tolerance is +/-0.01           (b) A 94% confidence interval for a difference in proportions. Round your answer to three decimal places. ±z*=±   the absolute tolerance is +/-0.01             (c) A 98% confidence interval for a proportion. Round your answer to three decimal places. ±z*=±

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter 5, Section 2, Exercise 035

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

(a) An 86% confidence interval for a correlation.

Round your answer to three decimal places.

±z*=±

 

the absolute tolerance is +/-0.01

 

 
 
 
 

(b) A 94% confidence interval for a difference in proportions.

Round your answer to three decimal places.

±z*=±

 

the absolute tolerance is +/-0.01

 

 
 
 

 

 

(c) A 98% confidence interval for a proportion.

Round your answer to three decimal places.

±z*=±

 
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