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 X) = 289.30 and s, = 22.5, and another random sample of 16 gears from the second supplier results in 72 = 321.40 and s; = 21. Use only Table V of Appendix A (a] Is there evidence to support the claim that supplier 2 provides gears with higher mean impact strength? Use a = 0.05, and assume that both populations are normally distributed but the variances are not equal. Round your answer to 4 decimal places. 0.0007