Use a statistical calculator or Excel’s F.INV.RT function to determine the value beyond which you would find
a. 10% of the values, if numerator degrees of freedom = 11 and denominator degrees of freedom = 29.
b. 5% of the values, if numerator degrees of freedom = 8 and denominator degrees of freedom = 42.
c. 1% of the values, if numerator degrees of freedom = 15 and denominator degrees of freedom = 38.