Exhibit 13.4 The ANOVA test performed for Exhibit 13.2 determined that not all mean commute times across the four cities are equal.However,it did not indicate which means differed.To find out which population means differ requires further analysis of the direction and the statistical significance of the difference between paired population means.Tukey 95% confidence intervals are shown below. 
Refer to Exhibit 13.4.The conclusion of the Tukey confidence intervals is:
Definitions:
Real Interest Rates
The rate of interest an investor expects to receive after allowing for inflation, reflecting the true cost of capital.
Federal Budget Deficit
The amount by which government spending exceeds revenue over a specified period, leading to the need for borrowing or debt issuance.
Macroeconomic Conditions
The overarching economic factors affecting an economy at a large scale, including inflation rate, unemployment levels, GDP growth, and fiscal policy.
Common Currency
A currency that is used by multiple countries, facilitating easier trade and financial transactions across national borders.
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Q88: Tukey's 100(1 - α)% confidence interval for
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