please answer first question , the test statistic is F=?

and critical value/s?

To evaluate it audbors might be heiped in determining the chances of fraud if they carefully messure cash flow, sampies of midlevel auditors teom CPA frms were asked to indicate the chance of material populafion variancos were the same for auditors using cash-flow information as for auderors not using cash-flow intormation against a two-sided typothesis. Assume the populations ate normaly distributed. against a two-sided hypothesis, identify the mill and atemathe bypotheses. Chocse the correct answer below. A. H0:x20y2 B. 0=x2=y2 H1:y2y2