Analytical Hierarchy Process $(15$ points$)$

Andrew wants to buy a cell phone. The cell phone price is from $200-300$ dollars. To choose$/$get the best cell phone, he collects the information from each brand and assign the values of his preference for each criteria. The information and the values of his preference as follows:

$\backslash$table$[[$Brand$/$Criteria$,$Price,Storage Space,Camera,Looks$],[$Samsung$,250,16GB,12MP,5]]$

$\backslash$table$[[$Iphone$,200,16GB,8MP,3],[$LG$,300,32GB,16MP,4],[$Xiaomi$,275,32GB,8MP,4],[$KT Tech,$225,16GB,16MP,2]]$

The values of preference are :

Price is strongly more important than storage space $(5)$

Price is of moderate to strong importance compared to camera $(4)$

Price is of very strong importance compared to looks $(7)$

Camera is of equal to moderate importance compared to storage space $(2)$

Storage Space is of moderate importance compared to looks $(3)$

Camera is of moderate importance compared to looks $(3)$

Develop the hierarchy structure, calculate the criteria weight, alternative weight, overall alternative rank. What cell phone should Andrew buy based on the AHP method?