Question: Two telecommunication systems are to be compared. A random sample of 14 users of one system independently rate the system on a scale of 0 to 100. An independent random sample of 12 users of the other system rate their system on the same scale. The data are as follows.

System A:      65,  67,  83,  39,  45,  20,  95,  64,  99,  98,  76,  78,  82,  90

System B:      45,  57,  76,  54,  60,  72,  34,  50,  63,  39,  44,  70

Based on these data, are the two telecommunication systems equally liked? Explain.