PLEASE ANSWER THE QUESTION USING EXCEL AND EXPLAIN HOW YOU DONE SO. please answer it correctly and dont forget about the discussion and conclusion ! will give good rating :)

2) (30 marks] The level of phthalates in 20 water samples was determined by an old HPLC instrument and a new HPLC instrument. Compare the 2 data sets using graphed regression analysis in Excel to see if the methods can be determined as equal. Discuss your conclusion. You should provide a screengrab of your graph(s). Old HPLC 10.1 1 2 11.3 New HPLC 10.5 11.0 11.4 9.3 3 12.4 4 9.8 5 8.3 8.6 9.2 6 8.9 7 10.2 10.3 8 10.3 9 10.6 8.9 10.8 11.5 10 11 9.3 10.9 11.0 12.1 10.8 9.9 12 13 12.4 10.2. 9.8 14 8.4 7.9 15 16 17 8.4 8.0 10.4 10.9 18 10.5 19 9.8 9.3 11.2 10.6 11.1 20