From a Population That Is Normally Distributed, a Sample of 25

question 38

Multiple Choice

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

• A) normal distribution.
• B) t distribution with 25 degrees of freedom.
• C) t distribution with 26 degrees of freedom.
• D) t distribution with 24 degrees of freedom.

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Definitions:

Day

A unit of time equivalent to 24 hours, representing the period it takes for the Earth to complete one full rotation on its axis.

Week

A time unit consisting of seven days, commonly used as a standard period for work and rest cycles.

Begins

The start or initiation of a process, activity, or event.

Classical Probability

A theory of probability based on equally likely outcomes, where the probability is determined by the ratio of favorable outcomes to the total number of possible outcomes.