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Choose the statement that best describes what is meant when we say that the sample mean...

Choose the statement that best describes what is meant when we say that the sample mean is unbiased when estimating the population mean. Select one: a. We cannot say that the sample mean is unbiased. b. On average, the sample mean is the same as the population mean. c. The standard deviation of the sampling distribution (also called the standard error) and the population standard deviation are equal. d. The sample mean will always equal the population mean.

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Choose the statement that best describes what is meant when we say that the sample mean is unbiased when estimating the population mean.

Answer:

b. On average, the sample mean is the same as the population mean.

Sample mean ( \bar X ) = Population mean ( \mu )

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