a personal computer manuacturer is interested in comparing assembly times for 2 keyboard assembly processes. assemby times can vary considerable from worker to worker, and teh company decides to elliminate this effect by selecting a randome sample of 8 workers and timing each worker on each assembly process. half of the workers are chosen at random to use process 1 first and the rest use process 2 first. for each worker and each process, the assembly time is recorded
