Question

Two different analytical tests can be used to determine the level of impurity of steel alloys. Eight specimens are tested using both procedures and the results are shown in the following tabulation: Specimen Test1 Test 2 1.4 1.3 1.7 1.5 1.5 1.3 1.3 1.6 a) of the hypotheses studied, what would be the type of hypothesis that applies in this problem? Write your answer in the space provided. b) The values of d and of Sa are: 2.1 c) Perform the hypothesis test that applies to the problem using the 5 hypothesis test steps: 1. Establish breatheses Ho: 2. Set the test statistic 3. Establish the rejection zone Zona de rechazo: Graph showing rejection zone (Place the value on the vertical line where the rejection zone begins): 4. Calculate the test statistic The value of the test statistic is: 5. Establish the conclusion Graph showing rejection zone and placement of test statistic. (Place the value on the appropriate vertical line for the test statistic): Based on the graph above, establish the conclusion that applies to the problem.

Two different analytical tests can be used to determine the level of impurity of steel alloys. Eight specimens are tested using both procedures and the results are shown in the following tabulation:

Specimen	Test1	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	2.0
6	1.8	2.1
7	1.4	1.7
8	1.3	1.6

Answer 1

#ca Ho: Ma el d ela =0 o (6) ca T = I pairedt teft. ut i (b) I- +0.21250 so = 0.1723 D Ho: Md=0 Ho: Maro (2) teststuristic = X ( 3 I Rejection zone if ty 1.89 46 reject no 1.89 46

(6 test statistics = 0.2125 0.1727 13.48 13.48 (1.8946 We reject to test25s better Conclure that man testl.