Treatment Sham μ μ1 μ2 n 25 25 x 0.55 0.43 s 0.78 1.42 a. Use a 0.05 significance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham...

a.  Use a 0.05 significance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment.

What are the null and alternative​ hypotheses?

A.

H0​: μ1=μ2

H1​: μ1>μ2

B.

H0​: μ1<>

H1​: μ1≥μ2

C.

H0​: μ1≠μ2

H1​: μ1<>

D.

H0​: μ1=μ2

H1​: μ1≠ μ2