Three different bottles of vinegar were analyzed by the same…

Three different bottles of vinegar were analyzed by the same analyst for percentage acetic acid content. The following results were obtained. Bottle no.1 Bottle no. 2 Bottle no.3 3.88 5.72 [K] 3.92 5.61 [L] 3.75 5.60 [M] 3.84 5.68 [N] 3.91 5.66 [O] How many measurements of sample 3 would have to be taken to reduce the 90% C.I. to 0.0750 ppm? (report 3 decimal places)

Three different bottles of vinegar were analyzed by the same…

Three different bottles of vinegar were analyzed by the same analyst for percentage acetic acid content. The following results were obtained. Bottle no.1 Bottle no. 2 Bottle no.3 [A] 5.72 8.13 [B] 5.61 8.19 [C] 5.60 8.17 [D] 5.68 8.05 [E] 5.66 8.21 Calculate the  margin of error for the 99.5% confidence interval for sample 1 if s→σ and has a value of [X]. (Report 3 decimal places)