pls only answer b-c i am having a hard time understanding those and would like to learn esspecially with plotting residuals. pls use ms excel and thank u 2. (Prob.13-51, p. 570) An experiment was conducted to investigate leaking current in a SOSMOSFETS device. The purpose of the experiment was to investigate how leakage current variesas the channel length changes. Four channel lengths were selected. For each channel length, fi vedifferent widths were also used, and width is to be considered a nuisance factor. The data are asfollows: ChannelWidthLength123450.70.80.80.91.020.80.80.90.91.030.91.01.72.04.041.01.52.03.020.0(a) Test the hypothesis that mean leakage voltage does not depend on the channel length usinga = 0.05.(b) Analyze the residuals from this experiment. Comment on the residual plots.(c) The observed leakage voltage for channel length 4 and width 5 was erroneously recorded. Thecorrect observation is 4.0. Analyze the corrected data from this experiment. Is there evidence toconclude that mean leakage voltage increases with channel length?%3D

Given Information:- Width Channel 1 Channel 2 Channel 3 Channel 4 1 0.7 0.8 0.9 1 2 0.8 0.8…

Width Channel Length 1 5 0.7 0.8 0.8 0.9 1.0 0.8 0.8 0.9 0.9 1.0 3 0.9 1.0 1.7 2.0 4.0 4 1.0 1.5 2.0 3.0 20.0 (a) Test the hypothesis that mean leakage voltage does not depend on the channel length using a = 0.05. (b) Analyze the residuals from this experiment. Comment on the residual plots. (c) The observed leakage voltage for channel length 4 and width 5 was erroneously recorded. The correct observation is 4.0. Analyze the corrected data from this experiment. Is there evidence to conclude that mean leakage voltage increases with channel length?