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The file contains the quarterly sales tax receipts in thousands of dollars submitted to the comptroller of the Village of Fair Lake for the period ending March 2010 by all 50 business establishments

The file contains the quarterly sales tax receipts (in thousands of dollars) submitted to the comptroller of the Village of Fair Lake for the period ending March 2010 by all 50 business establishments in that locale: 10.5 7.6 10.1 8.9 8.6 a. Compute the mean, variance, and standard deviation for this population.
b. What percentage of these businesses have quarterly sales tax receipts within or 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)?

Jun 20 2020 View more View Less

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