What are the ripple and attenuation in a set of moving average filters?
George Theodosiou: As Matt L. said, your final filter is not a standard filter having, say, a visible passband with some measureable passband ripple. For example, the combined frequency magnitude response of just your first three moving average filters implemented one after the other (what we call "cascaded filters") is the following:



The value of 0.1 on the horizontal axis is equivalent to 0.1 times the filter's input data sample rate measured in Hz.

What we can say is: The combined frequency response of multiple filters implemented one after the other is the product of all the filters' complex-valued frequency responses.