The Reason for Using the T-Distribution in a Hypothesis Test

question 106

Multiple Choice

The reason for using the t-distribution in a hypothesis test about the population mean is:

• A) the population standard deviation is unknown.
• B) it results in a lower probability of a Type I error occurring.
• C) it provides a smaller critical value than the standard normal distribution for a given sample size.
• D) the population is not normally distributed.

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