View Policies Show Attempt History Current Attempt in Progress The burning rates of two different solid-fuel propellants used in aircrew escape systems are being studied. It is known that both propellants have approximately the same standard deviation of burning rate; that is, of = 02 = 3 cm/s. From a random sample of sizenj = 20 and /12 = 20, we obtain.X, = 18.02 cm/s and X2 = 24.33 cm/s. Statistical Tables and Charts V Good. Since the value of the test statistic falls in the rejection region, we reject Ho at a = 0.05. (a) Test the hypothesis that both propellants have the same mean burning rate. Use a fixed-level test with a = 0.05 and choose the appropriate conclusion from below: Since -6.65