Question: Employees who work with electronic components at Canadian Automated Electronics are required to undergo special training. Training includes completing tasks under simulated conditions and recording

Employees who work with electronic components at Canadian Automated Electronics are required to undergo special training. Training includes completing tasks under simulated conditions and recording completion times. A supervisor claims he has found some star performers among a new group of trainees.
a. Based on the data shown, test the claim at the 0.01 significance level that the star-performers group has a mean completion time less than the other group (based on data from Canadian Automated Electronics). The assumption of equal variances for the groups has been rejected (p < 0.01).
b. Construct a 99% confidence interval estimate of the difference between the mean task completion time for the two groups.
Star performers: n = 15, x - 286, s = 71.93
Other trainees: n = 10, X - 873.7, s = 259.26

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