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The inside diameter of a randomly selected piston ring is a random variable with mean value 15 cm and standard deviation 0.06 cm. (a) If X is the sample mean diameter for a random sample of n = 16 rings, where is the sampling distribution of X centered and what is the standard deviation of the X distribution? (Enter your standard deviation to five decimal places.)

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zainsubhani

Answer:

Center = 15, SD=0.00375

Step-by-step explanation:

population and sampling distribution will have the same center. In this case, the center of the sampling distribution would be 15cm.

S E = σ/  sqrt n

=0.06/16