Please write (using attached preserving food example) into a testable hypothesis both in English version and mathematically, i.e. Ho and Ha with appropriate population parameter using ANOVA? If you have rejected your Ho then how would you determine which employee group differs significantly?

An example for this would be if we wanted to check for any significant difference in the preserving of food items at different temperatures. The temperature is the variable and the levels are; 0 degree, 10- degrees, or 20 degrees.