In a manufacturing company, a one-month training program is conducted to each employee. A new training program has been developed. To test the new program, 2 groups of 9 employees each were assigned a job, the first group trained under the old system and the second trained under the new program. Their performance timings in minutes are recorded as follows:
X (old program)
31
38
36
30
42
34
32
33
39
Y (New program)
34
33
26
36
31
28
27
29
35
Do the job execution times present sufficient evidence to indicate that the mean time is less for the new training program? [ t0.05,16 = 1.746]
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