I need help using an online stat calculator to find the confidence levels: I am using Stat Crunch and the CI that generates DOES NOT match the answer.

Listed in the accompanying table are waiting times? (seconds) of observed cars at a Delaware inspection station. The data from two waiting lines are real? 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).

One Line	Two Lines
63.9	64.1
156.8	215.8
142.1	85.9
279.1	339.8
252.9	199.9
476.3	630.2
477.7	332.5
473.6	328.8
402.4	914.7
721.5	552.8
760.6	597.2
692.3	864.9
836.9	1090.2
903.2	663.2
733.8	517.5
605.6	566.2
267.7	268.3
310.2	350.3
128.8	95.1
132.8	99.7
121.9	162.9
128.6	100.8
233.3
460.8
482.1
518.3
508.6
579.9

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? H03l11|12 H03i11=l12 H13l11=l12 H13i11>l12 V H0: \"1 = \"2 Hoil11