Does impulse buying really increase sales? A market researcher is curious to find out whether the location of packages of chewing gum in a grocery store really has anything to do with volume of gum sales. As a test, gum is moved to a different location in the store every Monday for four weeks (four locations). To control the experiment for type of gum, six different brands are moved around. Sales representatives keep track of how many packs of each type of gum are sold every Monday for the four weeks. The results follow. Test to determine whether there are any differences in the volume of gum sold at the various locations.

Does impulse buying really increase sales? A market researcher is curious to nd out whether the location of packages of chewing gum in a grocery store really has anything to do with volume of gum sales. As a test, gum is moved to a different location in the store every Monday for four weeks {four locations}. To control the experiment for type of gum, six different brands are moved around. Sales representatives keep track of how many packs of each type of gum are sold every Monday for the four weeks. The results fol low. Test to determine whether there are any differences in the volume of gum sold at the various locations. Let a = .05. '1 A 1:"6 B 156 C 203 Brand D 183 E 147 F 190 Determine the value of the test statistic. [Round them to 2 docinml'placa, as. 45.51] l Location 2 3 53 111 62 98 B9 117 7'3 118 46 101 33 113 120 111'r 105 113 114 115 Appendix A Statistical Tables