A simple random sample is drawn from a normally distributed population. The value of which of the following will not be known for certain but can be inferred?

The population mean, μ, is generally unknown, but it can be estimated from the sample mean. The sample size, n, is known from how many observations were selected, and the sample standard deviation, s, and sample mean, x̄, can be calculated from the sample. Therefore, μ is the value inferred rather than known for certain.

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