In a large department store, the owner wishes to see whether the number of shoplifting incidents per day will change if the number of uniformed security officers is doubled. A random sample of 7 days...

Extracted text: In a large department store, the owner wishes to see whether the number of shoplifting incidents per day will change if the number of uniformed security officers is doubled. A random sample of 7 days before security is increased and 7 days after the increase shows the number of shoplifting incidents as follow: Day No. of shoplifting incidents Before After |Monday Tuesday Wednesday Thursday Friday Saturday Sunday 7 2 3 3 4 3 1 8 12 4 Analyze whether there enough evidence to support the claim, at a = 0.05, that there is a difference in the number of shoplifting incidents before and after the increase in security?