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A sample of ?=24 observations is drawn from a normal population with ?=1000 and ?=240. Find...

A sample of ?=24 observations is drawn from a normal population with ?=1000 and ?=240. Find each of the following:

A. ?(?¯>1097)

Probability =

B. ?(?¯<906)

Probability =

C. ?(?¯>990)

Probability =

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