13.185Xr13-185 A restaurant located in an office buildingdecides to adopt a new strategy for…

13.185Xr13-185 A restaurant located in an office buildingdecides to adopt a new strategy for attracting cus-tomers to the restaurant. Every week it advertises inthe city newspaper. To assess how well the advertis-ing is working, the restaurant owner recorded theweekly gross sales for the 15 weeks after the cam-paign began and the weekly gross sales for the 24weeks immediately prior to the campaign. Can therestaurateur conclude that the advertising campaignis successful