In Interval Estimation, the T Distribution Is Applicable Only When

question 19

Multiple Choice

In interval estimation, the t distribution is applicable only when

• A)the population has a mean of less than 30
• B)the sample standard deviation is used to estimate the population standard deviation
• C)the variance of the population is known
• D)the standard deviation of the population is known

Grasp the concept and application of sampling distributions, including the standard normal distribution, Chi-squared distribution, and others.

Recognize and apply the concepts of Type I and Type II errors in hypothesis testing.

Understand how data collection methods affect the conclusions of a statistical analysis.

Recognize the importance of sample size and its effect on the confidence intervals and error probabilities.

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