Below I plot the 95% interval for \(P(k)\) when limiting to an interval on redshift:

\(z_{99.9}\) = [ 5.5, 5,6 ]

\(z_{99.9}\) = [ 5.6, 5,7 ]

\(z_{99.9}\) = [ 5.7, 5,8 ]

\(z_{99.9}\) = [ 5.8, 5.9 ]

\(z_{99.9}\) = [ 5.9, 6.0 ]

\(z_{99.9}\) = [ 6.0, 6.1 ]

\(z_{99.9}\) = [ 6.1, 6.2 ]