The melting points (in degrees Celsius) of three industrial lubricants are 350, 399, and 418. Use a

Question:

The melting points (in degrees Celsius) of three industrial lubricants are 350, 399, and 418. Use a sample size of 3.

A population and sample size are given.

(a) Find the mean and standard deviation of the population.

(b) List all samples (with replacement) of the given size from the population and find the mean of each.

(c) Find the mean and standard deviation of the sampling distribution of sample means and compare them with the mean and standard deviation of the population.

Distribution
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