The single-sample t ratio may be used when all the parameter values are known rather than assumed.

Name: The single-sample t ratio may be used when all the parameter values are known rather than assumed.
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Quizplus · Accepted Answer

The single-sample t ratio is used when the population standard deviation is unknown and needs to be estimated using the sample standard deviation. Therefore, the parameter values are not known but are assumed to follow a normal distribution.

The Single-Sample T Ratio May Be Used When All the Parameter