#6): What is the alternative hypothesis for a test of whether there is a difference between the response times for the two conditions for the pilots (alcohol vs. no alcohol)?

	A	H1: 1 2
	B	H1: D > 0
	C	H1: 1 > 2
	D	H1: D 0

Ten pilots performed tasks at a simulated altitude of 25,000 feet. Each pilot performed the tasks in a completely sober condition and, three days later, after drinking alcohol. The response variable is the time (in seconds) of useful performance of the tasks for each condition. The longer a pilot spends on useful performance, the better. The data are provided below.

Pilot	Response time (no alcohol)	Response time (with alcohol)
1	251	195
2	565	375
3	500	310
4	630	240
5	260	255
6	365	420
7	400	405
8	535	205
9	410	285
10	900	900

Test whether there is a difference between the response times for the two conditions (alcohol and no alcohol) for the pilots. Use a two-tailed test with alpha = .05. Show all four steps of the hypothesis test.