. listed in the accompanying table are waiting times (seconds) of observed cars at a DelaWare ' inspection station. The data from two waiting lines are reai observations, and the data from the single waiting line are modeled from those real observations. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). : 'I . a. Use a 0.01 signicance level to test the claim that cars in two queues have a mean waiting time equal to that of cars in a single queue. Let population 1 correspond to the single waiting line and let population 2 correspond to two waiting lines What are the null and alternative hypotheses? OA. H0:p1p2 Gigi H05P1=P2 H11P1=P2 H1=F1Fz GO. : 5'" . H0:p1