Hello and good morning all I have this homework for Chemometric its 12 question

Hello and good morning all
I have this homework for Chemometric its 12 question from the book ( In the attachments )
I need it in 2 separated files please for each chapter ☺️
Chemometric problems :
Ch4:
problems 4-3 , using excel
problems 4-12 , using excel
problems 4-13 , using excel
problems 4-17 , using excel
problems 4-21 , using excel
problems 4-32 , using excel
Ch5:
problems 5-16 , using excel
problems 5-18 , using excel
problems 5-19 , using excel
problems 5-21 , using excel
problems 5-24 , using excel
problems 5-33 , using excel