Question: =+Dec. 21 (a) Use the runs up and down test to see if these data show a directional trend and make an appropriate conclusion at

=+Dec. 21

(a) Use the runs up and down test to see if these data show a directional trend and make an appropriate conclusion at the 0.05 level.

(b) Use the runs above and below the sample median test to see if these data show a trend and make an appropriate conclusion at the 0.05 level.

(c) Compare the conclusions reached in

(a) and

(b) and give an explanation for the difference.

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