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Self-Service Checkout Sales Employee Operated Checkout Sales Mean 36,709.11 46,995.93 Variance 56,334,320.66 398,979,967.20 Observations 180.00 180.00 Pooled Variance 227,657,134.93 Degrees of Freedom 358.00 Standard Deviation
Self-Service Checkout Sales Employee Operated Checkout Sales Mean 36,709.11 46,995.93 Variance 56,334,320.66 398,979,967.20 Observations 180.00 180.00 Pooled Variance 227,657,134.93 Degrees of Freedom 358.00 Standard Deviation 7,505.62 19,974.48 18,152.81 Hypothesized Mean Difference -10,286.82 T Stat -6.47 Is there a statistical difference between the variables
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An Introduction to the Mathematics of financial Derivatives
Authors: Salih N. Neftci
2nd Edition
978-0125153928, 9780080478647, 125153929, 978-0123846822
