Question
The Internal Tax Revenue Service reports that the mean federal income tax pais in the yesr 2010 was $8040. Assume that the Standard Deviation is
The Internal Tax Revenue Service reports that the mean federal income tax pais in the yesr 2010 was $8040. Assume that the Standard Deviation is $5,000. The IRS plans to draw a sample of 1,000 tax returns to study the effect of a new tax law. What is the probability that the sample mean is greater than $8,380?
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High School Math 2012 Common-core Algebra 2 Grade 10/11
Authors: Savvas Learning Co
Student Edition
9780133186024, 0133186024
