Compute the estimated standard error of ???? when (a) ???? = 3000, ???? = 50, and ????

Question:

Compute the estimated standard error of ????̄ when

(a) ???? = 3000, ???? = 50, and ???? = 14.2.

(b) ???? = 10000, ???? = 150, and ???? = 251.8.

(c) ???? = 15000, ???? = 1500, and ???? = 768.9.

(d) ???? is unknown, ???? = 75, and ???? = 129.5.

(e) ???? is unknown, ???? = 225, and ???? = 11.88.

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Ali Khawaja

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