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For the same set of differences between two dependent sets 84,85,83,63,61,100,98 in carrying out a test to ascertain whether the mean difference is different from

For the same set of differences between two dependent sets

84,85,83,63,61,100,98

in carrying out a test to ascertain whether the mean difference is different from 91., the distribution you need to use is:

A) t with 7 df

B) t with 6 df

C) standard normal

D) chi-square with 6 df

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