The use of electronic devices, such as smartphones, increases our exposure to extremely low-frequency electromagnetic fields (ELF-EMF). A study involving rats was run to study long-term exposure to ELF-EMF. For one analysis, investigators compared the time spent in a target quadrant that the rats were taught to go to prior to the different levels of extended ELF-EMF exposure. There were 12 rats per level of exposure. The following ANOVA partially summarizes the results. Source ELF-EMF Error Total DF 4 b SS 662.86 c MS a d F 5.70 (a) Find the values of the missing quantities a-e in the table. (b) Test the null hypothesis that there is no difference in the average time spent at the target site across exposure levels. (c) What is the estimate of o?