why does the power spectrum have significant power why would power variances be significant what is the difference between thc and normalized frequency which frequency range does normalization lower power how to find the difference between the power spectrum for a thc signal and the frequency spectrum for a control signal what frequencies can be used to compare the thc spectrum what is the difference between power and hz? when the power of a signal is greater than the power of a control frequency what is the difference between normal and normal how to tell if a frequency is significantly different between groups why is there no difference in the power in each frequency which hz frequency has the highest power why does a normalize a signal have a significant power why is the power difference between frequency groups what frequencies do normalization affect what frequency would the difference be detected at a normalization test? how does power difference differ between groups? what is the significance of the difference between the two groups? which frequency range shows significant changes in power why do power spectrums have a difference