Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 90​% confidence that your error is no more than 0.035.   The sample should include   men and   women. ​(Type whole​ numbers.)

MATLAB: An Introduction with Applications
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Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want
90​%
confidence that your error is no more than
0.035.
 
The sample should include
 
men and
 
women.
​(Type whole​ numbers.)
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