Family incomes have a mean of $60 000 with a standard deviation of $20 000. The data
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Family incomes have a mean of $60 000 with a standard deviation of $20 000. The data are normally distributed.
A new tax law designed for the middle class is to help families with incomes from $45 000 to $80 000. What percentage of families will this new law help?
Related Book For
Applied Statistics For Public And Nonprofit Administration
ISBN: 9781285737232
9th Edition
Authors: Kenneth J. Meier, Jeffrey L. Brudney, John Bohte
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