Question: DEFINE THE SAMPLING DISTRIBUTION OF THE SAMPLE MEAN FOR NORMAL POPULATION WHEN THE 1WARIANOE IS KNOWN AND UNKNOWN. Instruction: Read and analyze the following situations

DEFINE THE SAMPLING DISTRIBUTION OF THE SAMPLE MEAN FOR NORMAL POPULATION WHEN THE 1WARIANOE IS KNOWN AND UNKNOWN. Instruction: Read and analyze the following situations and supply the values of the following variables {if there is any]. On the third column, write known on the space provided if the situation gives the value of the variance, otherwise write unknown. You must also identify the formula to he used for the standard error of the mean by writing the symbols (Ti, when the population variance is known and 3,; when the population variance is unknown

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