Essay
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. State the appropriate null and alternative hypotheses to test whether there is a significant difference between the two models of snowmobiles in average top speed.
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