This is personal study note Copyright and original reference: https://www.youtube.com/watch?v=htXELssWGEk&list=PLsri7w6p16vsOVj5cL8U4z0m4RdMZfhme&index=2 ================================================================================ $$$H_0$$$ there is no difference of satisfaction in each convenient store $$$\bar{x}_A=\bar{x}_B=\bar{x}_C$$$ $$$\bar{x}_A$$$: mean of satisfaction of convenient store A $$$H_1$$$ there is difference of satisfaction in each convenient store $$$\bar{x}_A \ne \bar{x}_B \ne \bar{x}_C$$$ ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================ Point: - How you interpret "5.664"? - there is different of satisfaction in each convenient store - highest_satisfaction=lowest_satisfaction*5.664 ================================================================================ degree of freedom (between groups): i-1=2 degree of freedom (within groups): n-i=21 5.664 > 3.47 ================================================================================ 3.47 5.664 $$$H_0$$$ is rejected