In a survey of 7000 women, 4431 say they change their nail polish once a week. whats a 90 % confidence interval for the population proportion of women who change their nail polish once a week. = ( , )
In a survey of 7000 women, 4431 say they change their nail polish once a week. whats a 90 % confidence interval
for the population proportion of women who change their nail polish once a week.
= ( , )
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