1.Draw a rough sketch of the frequency magnitude response, over the positivefrequency range, of a three-point moving averager. Clearly show the frequency magnitude response at fs /2 Hz. Note: The...

1.Draw a rough sketch of the frequency magnitude response, over the positivefrequency range, of a three-point moving averager. Clearly show the frequency magnitude response at fs /2 Hz. Note: The locations of the frequency response nulls are defined by the locations of the averager’s transfer function zeros on its z -plane unit circle. 2. Think about building a two-stage filter comprising a four-point moving averager in cascade (series) with a two-point moving averager. (a) Draw a rough sketch of the frequency magnitude response of the twostage filter. (b) Does the cascaded filter have a linear phase response? Justify your answer.