T Statistic Calculator (T-Value)

Enter the sample mean, population mean, standard deviation, and sample size into the t statistic calculator to determine the t-value of that set of data.

T Statistic Formula

The following formula can be used to calculate the t statistic of a data set.

t = [ x – μ> ] / [ s / sqrt( n ) ]

  • Where X is the sample mean
  • μ is the population mean
  • s is the standard deviation of the sample
  • n is the sample size

The most important point to note about this formula is that the standard deviation is of the sample, not the entire population.

How to calculate a t statistic

  1. First, determine the sample mean

    Calculate the sample mean of the data set

  2. Next, determine the population mean

    Calculate the mean of the entire population

  3. Calculate the standard deviation of the sample

    Use the formula for standard deviation

  4. Finally, Calculate the t-statistic

    Using the values from steps 1-3 and the sample size, calculate the t-statistic through the formula above.

FAQ

What is a T Statistic?

A T statistic, also known as t value, is a term used to describe the relationship between a sample set to a population set. It’s used to condense large amounts of data into a single value.

t statistic calculator

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