Snowmobile Speeds Narrative
A customer was interested in comparing the top speed (in kilometres per hour) of two models of snowmobiles. The customer selected two independent random samples of the snowmobiles and calculated the following summary information: 
Assume the distribution of top speeds is approximately normal.
-Refer to Snowmobile Speeds Narrative. Set up the appropriate rejection region for the hypotheses above assuming 
= 0.05.
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