Question 3 Owens Lawn Care Inc. manufactures and assembles lawnmowers that are shipped to dealers through the United States and Canada. Two different procedures have been proposed for mounting the engine on the frame of the lawnmower. The question is: is there a difference in the meantime to mount the engines on the frames of the lawnmowers? The first procedure was developed by longtime Owens employees Herb Welles (designated as procedure W) and the other procedure was developed by Owen Vice president of Engineering William Akins (designated as Procedure A). To evaluate the two methods, we conduct a time and motion study; a sample of five employees is timed using the Welles methods and six using the Atkins

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Question 3
Owens Lawn Care Inc. manufactures and assembles lawnmowers that are shipped to dealers
through the United States and Canada. Two different procedures have been proposed for
mounting the engine on the frame of the lawnmower. The question is: is there a difference in
the meantime to mount the engines on the frames of the lawnmowers? The first procedure was
developed by longtime Owens employees Herb Welles (designated as procedure W) and the
other procedure was developed by Owen Vice president of Engineering William Akins
(designated as Procedure A). To evaluate the two methods, we conduct a time and motion
study; a sample of five employees is timed using the Welles methods and six using the Atkins
method. The results, in minutes are shown below. Is there a difference in the mean mounting
times? Use .10 significance level
Welles(minutes)
Atkins(minutes)
3
7
8
2
4
3
2.
3.
Transcribed Image Text:Question 3 Owens Lawn Care Inc. manufactures and assembles lawnmowers that are shipped to dealers through the United States and Canada. Two different procedures have been proposed for mounting the engine on the frame of the lawnmower. The question is: is there a difference in the meantime to mount the engines on the frames of the lawnmowers? The first procedure was developed by longtime Owens employees Herb Welles (designated as procedure W) and the other procedure was developed by Owen Vice president of Engineering William Akins (designated as Procedure A). To evaluate the two methods, we conduct a time and motion study; a sample of five employees is timed using the Welles methods and six using the Atkins method. The results, in minutes are shown below. Is there a difference in the mean mounting times? Use .10 significance level Welles(minutes) Atkins(minutes) 3 7 8 2 4 3 2. 3.
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