Twо different аnаlyticаl tests can be used tо determine the impurity level in steel allоys. Eight specimens are tested using both procedures, and the results are shown in the following tabulation. Specimen Test 1 Test 2 1 1.2 1.4 2 1.3 1.7 3 1.5 1.5 4 1.4 1.3 5 1.7 2 6 1.8 2.1 7 1.4 1.7 8 1.3 1.6 Use hypothesis testing to determine if mean difference in impurity level is equal to 0 or not. What is the numerical value of the p-value to 4 decimal places?