Please help me to understand this problem:

Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears measured in foot-pounds is an important characteristic. A random sample of 10 gears from supplier 1 results in X1 = 289.30 and $1 = 22.4, and another random sample of 16 gears from the second supplier results in X2 = 321.50 and $2 = 21. Is there sufficient evidence to conclude that the variance of impact strength is different for the two suppliers? Use @ = 0.US. Round numeric answer to 2 decimal places. Since the test statistic, fo = is not Y in the rejection region, there is ) sufficient evidence to conclude that the variance of impact strength is different for the two suppliers