04 May 10.49 The Director Of Training For A Company That Manufactures Electronic Equipment Is Interested …
10.49 The director of training for a company that manufactures electronic equipment is interested in determining whether different training methods have an effect on the productivity of assembly-line employees. She randomly assigns 21 of the 42 recently hired employees to a computer assisted, individual-based training program. The other 21 are assigned to a team-based training program. Upon completion of the training, the employees are evaluated on the time (in seconds) it takes to assemble a part. The results are in the data file Training. a. Using a 0.05 level of significance, is there evidence of a difference between the variances in assembly times (in seconds) of employees trained in a computer-assisted, individual-based program and those trained in a team based program? b. On the basis of the results in (a), which t test defined in Section 10.1 should you use to compare the means of the two training programs?
Type 1 Type 0 19.4 22.4 16.7 13.8 20.7 18.7 19.3 18 21.8 19.3 16.8 20.8 14.1 15.6 17.7 17.1 16.1 18 19.8 28.2 16.8 21.7 19.3 20.8 14.7 30.7 16 24.7 16.5 23.7 17.7 17.4 16.2 23.2 17.4 20.1 16.4 12.3 16.8 15.2 18.5 16
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