How do you know the p-value on megastat. On minitab It looks like it gets a different p-value than megastat. I got a number from megastat of 2.35E10 and on minitab it was 0.000.

To calculate the p-value using different software like MegaStat and Minitab, you typically need to perform a statistical test, such as a t-test or a chi-square test. It's important to understand that different software may use different statistical methods or assumptions, which can lead to differences in the calculated p-values.

To determine the p-value using MegaStat, you would typically follow these steps:

1. Open your dataset or input your data into MegaStat.
2. Select the appropriate statistical test, such as a t-test or chi-square test, based on your research question and data.
3. Calculate the test statistic using MegaStat, which is specific to the chosen statistical test.
4. MegaStat will provide you with a test statistic and corresponding p-value.

On the other hand, Minitab is another statistical software that can calculate p-values. To determine the p-value using Minitab, you would generally follow these steps:

1. Open your dataset or input your data into Minitab.
2. Select the appropriate analysis option (e.g., "t-test," "ANOVA," "chi-square test") based on your research question and data.
3. Input the necessary variables and options for the chosen analysis.
4. Minitab will calculate the test statistic and corresponding p-value to interpret the results.

Now, regarding your specific example of getting a p-value of 2.35E10 in MegaStat and 0.000 in Minitab, it's important to note that the p-value is a measure of statistical significance. A p-value of 2.35E10 indicates an extremely high p-value, suggesting weak evidence against the null hypothesis. Conversely, a p-value of 0.000 in Minitab suggests strong evidence against the null hypothesis.

These discrepancies in the p-values obtained from different software can be due to several reasons, including differences in the statistical methods used, rounding errors, or variations in the underlying assumptions. It would be beneficial to review the documentation or reach out to customer support for both MegaStat and Minitab for further clarification on their specific calculation methods and potential discrepancies.

In summary, to determine the p-value using MegaStat or Minitab, follow the respective software's steps for the specific test you are performing. Differences in the calculated p-values might occur due to variations in software-specific methodologies, rounding errors, or underlying assumptions.