Question: A company that makes processors for computers uses a .05 significance level to reject any lot of processors that does not run at an average of 500 Millions of Instructions Per Second (MIPS). Twenty processors are selected at random to test the quality of six lots. Below are listed the resulting mean of MIPS for each of the six lots of processors. Which lots should be rejected as having failed to meet quality standards? Specify the t_crit you will use for the tests as well as the t_obs

Lot A: \(\bar{X}\) =502, s=3.1

Lot B: \(\bar{X}\) =501.6, s=3.3

Lot C: \(\bar{X}\) =499.6, s=1.3

Lot D: \(\bar{X}\) =498.3, s=2.6

Lot E: \(\bar{X}\) =501.4, s=3.2

Lot F: \(\bar{X}\) =500.3, s=.6