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From a Population That Is Normally Distributed with an Unknown

Question 16

Multiple Choice

From a population that is normally distributed with an unknown standard deviation, a sample of 25 elements is selected. For the interval estimation of μ, the proper distribution to use is the _____.


A) standard normal distribution
B) z distribution
C) t distribution with 26 degrees of freedom
D) t distribution with 24 degrees of freedom

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