According to the Internal Revenue Service, the mean tax refund for the year 2013 was $3,000. Assume
Question:
a. What percent of the refunds are more than $3,100?
b. What percent of the refunds are more than $3,100 but less than $3,500?
c. What percent of the refunds are more than $2,250 but less than $3,500?
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a Begin by using formula 75 to find the z value for 3100 is 3100 3000450 or 022 ...View the full answer
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Related Book For
Statistical Techniques in Business and Economics
ISBN: 978-0078020520
16th edition
Authors: Douglas Lind, William Marchal
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