Point A conductivity (µs/cm) 682 Point B conductivity (µs/cm) 660 670 671 690 666 695 661 671 675 686 680 680 682 Conductivity was measured in samples taken from two different parts of a ventilation...

Extracted text: Point A conductivity (µs/cm) 682 Point B conductivity (µs/cm) 660 670 671 690 666 695 661 671 675 686 680 680 682 Conductivity was measured in samples taken from two different parts of a ventilation pool of a paper industry and the measurement results are given in the table. It is said that this pool is fully mixed and homogeneous. Does the pool really mix homogeneously at a confidence level of 0.95?