An article in Technometrics (1999, Vol41, pp.202-211) studied the capability of a gauge by measuring the weights of two sheet of paper. Consider data in the following table:

paper 1

paper 2

3.481

3.258

3.448

3.254

3.485

3.256

3.475

3.249

3.472

3.241

3.477

3.254

3.472

3.247

3.464

3.257

3.472

3.239

3.470

3.250

3.470

3.258

3.470

3.239

3.477

3.245

3.473

3.240

3.474

3.254

Is there evidence that the variance of measurement differs for the sheets of paper? Use .