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Stat > T Stats > Two Sample
  1. Choose the With Data option to use sample data from the StatCrunch data table.
    1. Select the columns containing the first and second samples.
    2. Enter optional Where statements to specify the data rows to be included in both samples. If the two samples are in separate columns, this step is typically not required.
    Alternative: Choose the With Summary option to enter the Sample mean, Sample standard deviation, and Sample size for both samples.
  2. Uncheck the Pool variances option if desired.
  3. Select the Hypothesis test or Confidence interval option.
    1. For a hypothesis test, enter the difference in means for the null hypothesis and choose ≠, <, or > for the alternative.
    2. For a confidence interval, enter a value between 0 and 1 for Level (0.95 provides a 95% confidence interval).
  4. Click Compute! to view the results.
In this example, a hypothesis test compares the prices of homes listed in Bryan to those in College Station with potential outlier included.

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