The New York Choral Society divides male singers up into four categories from highest voices to lowest: Tenor1, Tenor2, Bass1, Bass2. In the table are heights of the men in the Tenor1 and Bass2 groups. One suspects that taller men will have lower voices, and that the varience of height may go up with the lower voices as well. Do we have good evidence that the varience of the heights of singers in the Tenor1 group is greater than the varience in the Bass2 group? Test the hypothesis at 1% level of significance. Tenor1 69 72 67 72 68 67   72 75 70 74 67 70 Bass2 71 67 65 70 64 70   66 75 72 66

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