We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. 
To test the hypothesis that the frequency distribution is normally distributed, the value of the chi-square test statistic is 12.19. What is the decision regarding the null hypothesis tested at the .05 level of significance?
Definitions:
Net Present Value
Net present value (NPV) is a financial calculation used to assess the profitability of an investment or project, by discounting all expected future cash flows to their present value using a specific discount rate.
Payback Period
The time it takes for an investment to generate enough cash flow to recover its initial cost, used in capital budgeting to evaluate investment efficiency.
Straight-Line Depreciation
A plan for breaking down the expense of a real asset across its viable life in steady annual segments.
Salvage Value
The anticipated earnings from an asset's sale following the cessation of its useful life.
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