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Janise’s Shoe runs stores in enclosed shopping malls in addition to outlet malls. Further there are more than 1,000 stores all through United States and Canada. Janise, the CEO, desires to find out whether number of shoes sold per week at the mall stores is greater than number sold at outlet malls. She chooses a sample of 22 mall and 25 outlet stores and finds out number of shoes sold in every sample store last week. Sample information which was reported given below.

Sample Mean       Sample      Standard Deviation       Sample Size
Mall                        1,078            633                             22
Outlet                     908.2           369.8                          25

Janise considers there is much more variation in number of shoes sold in mall stores than in an outlet stores. Therefore, she is not keen to suppose equal population standard deviations. At.02 significance level is it sensible to conclude that mean number of shoes sold at mall stores is greater than at outlet stores?

Statistics and Probability, Statistics

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