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my question contains 4 points kindly answer the all, if u won't don't solve , answer clear and if u r not sure from answer don't solve plz , thank u , sir

An analyst wants to test if the mean peak loads (in MPa) of two alloys are different. He takes a random sample of n peak load

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ORTE we have given that a = 9.5 MPa 7.8 MPa 52= 1.6 MPa For alloy ! Si=0.82 Tipa hall For alloy 2 a) Here we use the test forDATE Under Ho the test statistic is t x -X2 th KI hi ho I (n-1) sp +(12-1) 322 hitna-2 (11-1) (0.82)2 + (11-1 (1-622 11 + 1 -Here p-value < I level of significance 0.0052 L 10.05 Hence reject Ho al 5% level of significance and conclude that the mean99% confidence interval for a given problem is (0.7649, 2.6351) Hence out 2 and he are does not belong to the confidence inte

c)

p value for 2 tailed test=2*p value for one tailed test

p value table for one tailed test as follows:

9:34 Hull , ROSE © * 36 Edit 37 Х Cover pen, shapes and stamps are available X PDF Annotation 0.0.0-0.13.0.0 0.046 0.04.14 0.

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