The Bartlett method is used to estimate the power spectrum of a signal from a sequence x(n)

Question:

The Bartlett method is used to estimate the power spectrum of a signal from a sequence x(n) consisting of N = 2400 samples.
(a) Determine the smallest length M of each segment in the Bartlett method that yields a frequency resolution of ∆f = 0.01.
(b) Repeat part (a) for ∆f = 0.02.
(c) Determine the quality factors QB for parts (a) and (b).