Exercise $10\mathrm{.}2$

The following table contains the averages of each question of servqual questioner.

$\backslash$table$[[$No$.,\backslash$table$[[$Average$],[$perceptions$]],\backslash$table$[[$Average$],[$expectation$]]],[1,2,2,3,2],[2,2,5,3,8],[3,4,2,1,2],[4,4,1,2],[5,6,2,5,2],[6,5,4,6,1],[7,6,6,3],[8,3,5,5,9],[9,3,6,6,6],[10,5,2,2,4],[11,5,5,2,2],[12,5,6,2,4],[13,5,8,2,6],[14,3,8,5,6],[15,3,2,4],[16,4,3,9],[17,4,1,3,2],[18,4,2,6,2],[19,5,5,5],[20,6,4,8],[21,6,2,4,2],[22,4,5,6,3]]$

a$)$

b$)$ Calculate the overall averages of the dimensions of SERVQUAL $($according to RATER$-$model$).$

c$)$ Analyze the results, and take a recommendation for which dimension must be improved first.

d$)$ Perform a two$-$dimensional differencing analysis to base your recommendation, Do your results differ from your answer in part b$)?$

Please solve this problem with step by step solution so that I can understand it