This is personal study note Copyright and original reference: https://www.youtube.com/watch?v=TtqUCUr711s&list=PLsri7w6p16vsOVj5cL8U4z0m4RdMZfhme ================================================================================ 2 independent variables - brand - location 1 dependent variable - satisfaction ================================================================================ Independent variable A: brand Independent variable B: location ================================================================================ brand location satisfaction A GangNam 1 A GangNam 4 A GangNam 1 B GangNam 4 B GangNam 4 B GangNam 3 C GangNam 4 C GangNam 3 C GangNam 4 A HongDae 2 A HongDae 2 A HongDae 3 ... ================================================================================ Establish hypothesis entire mean $$$\bar{x}$$$ store name $$$\bar{x}_i$$$ store location \bar{x}_j $$$\bar{x}_{ij}$$$ kth observation $$$\bar{x}_{ijk}$$$ ================================================================================ i: brand name j: location k: kth value ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================