Test whether mu 1 less than mu 2

1<2 at the alpha

equals

=0.01

0.01 level of significance for the sample data shown in the accompanying table. Assume that the populations are normally distributed.

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Determine the null and alternative hypothesis for this test.

A.

Upper H 0 :

H0:mu 1 equals mu 2

1=2

Upper H 1 :

H1:mu 1 less than mu 2

1<2

B.

Upper H 0 :

H0:mu 1 equals mu 2

1=2

Upper H 1 :

H1:mu 1 not equals mu 2

12

C.

Upper H 0 :

H0:mu 1 not equals mu 2

12

Upper H 1 :

H1:mu 1 less than mu 2

1<2

D.

Upper H 0 :

H0:mu 1 less than mu 2

1<2

Upper H 1 :

H1:mu 1 equals mu 2

1=2

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