A researcher has collected all possible samples of a size of 150 from a population and listed the sample means for each of these samples.
a. If the average of the sample means is 450.55, what would be the numerical value of the true population mean? Discuss.
b. If the standard deviation of the sample means is 12.25, determine the standard deviation of the model from which the samples came. To perform this calculation, assume the population has a size of 1,250. |

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