A realtor wishes to assess whether a difference exists between home prices in three subdivisions.Independent samples of homes from each of the three subdivisions are obtained and their prices are recorded.The analysis of variance results for comparing these prices are provided below. 
What is the value of the estimate of the common population standard deviation of the populations of home prices in the three subdivisions?
Definitions:
Disposable Income
Funds available to households for saving and spending once income taxes are deducted.
APC
Average Propensity to Consume, which is the fraction of income spent on consumption.
Gross Investment
The total amount of capital expenditure a company spends on maintaining and increasing the scope of its operations.
Net Investment
The total spending on new fixed investment minus depreciation on existing physical assets.
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