One steps of involving in the corn flakes for cereals involves toasting the flakes. The accompanying table contains data for corn flakes thickness in mill for four different toasting times in seconds. Note: Normal probability plots indicate that the sample data come from normal populations. Table given:

20s 40sec 60s

1.3 1.6 1.5

0.8 1.7 1.3

1 0.7 0.8

1.4. 1.1 1.1

1.1 0.8 0.7

0.7 1.2 0.9

0.10 level of significant find p value and test statistics. Also determine hypothesis