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If we consider the simple random sampling process as an experiment, the sample mean is a. a random variable. b. always zero. c. exactly equal to the population mean. d. always smaller than the population mean.

Respuesta :

MrRoyal

The sample mean is an estimate of the population mean.

The sample mean is exactly equal to the population mean

How to determine the true statement

When the population mean is known; the value of the population mean can be used as the sample mean.

This is so because:

The sample mean is an estimate of the population mean.

And it is represented as:

[tex]\bar x = \mu[/tex]

Hence, the true statement is that the sample mean is exactly equal to the population mean

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