Illustrate what is standard deviation of above-below median

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Q. An analyst has gathered data also counted number of runs with respect to median. There were 60 observations also 22 runs.

Illustrate what is expected number of above/below median runs?
Illustrate what is standard deviation of above/below median runs?
Illustrate what can analyst conclude given this information?

expected number of above/below runs would be

Illustrate what is z score associated with this test?

Is there any evidence of non-random variation? Illustrate what is evidence?

Reference no: EM1376509

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