# The file contains the quarterly sales tax receipts (in thousands of dollars) submitted to the comptroller of

## Question:

a. Compute the mean, variance, and standard deviation for this population.

b. What percentage of these businesses have quarterly sales tax receipts within ±1, ±2, or ±3 standard deviations of the mean?

c. Compare your findings with what would be expected on the basis of the empirical rule. Are you surprised at the results in (b)?

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## Step by Step Answer:

**Related Book For**

## Basic Business Statistics Concepts And Applications

**ISBN:** 9780132168380

12th Edition

**Authors:** Mark L. Berenson, David M. Levine, Timothy C. Krehbiel