In the determination of chloride in a water sample, a silver nitrate solution was standardized to 0.1216; 0.1214; 0.1225 g of NaCl, pure and dry, spending 18.08; 17.95; 18.05 mL of silver nitrate until the end point is observed (color change from slightly yellowish to slightly reddish). From the sample, 100 ml were deposited in an Erlenmeyer flask, adding 15.00 ml of deionized water and potassium chromate (1 ml). 20.00; 20.20 mL to reach the end point of the titration (characterized by the color change from slightly yellowish to slightly reddish).

Given atomic masses (gmol-1): Ag = 107.87; N = 14.007; O = 16.00.

Na= 22.9898

Cl = 35.4531

-Considering the information provided in the statement, which method was used for the sample analysis?

- Considering the results obtained, and the technical standard for the maximum content of chloride in the water (250.00 mg L-1), apply the appropriate statistical tests and answer: is the water suitable for consumption?.