Critical Value is a statistical concept used to determine the significance of a result. It is the value of a statistic that is used to determine whether a hypothesis is true or false. It is calculated by taking the probability of a given statistic and comparing it to a predetermined level of significance. If the probability is less than the predetermined level of significance, then the hypothesis is accepted as true.

A Critical Value Calculator is a tool used to calculate the critical value of a statistical test. The critical value is the point at which a statistical test will reject the null hypothesis, and is determined by the level of significance and the degrees of freedom. The calculator can be used to determine the critical value for a variety of statistical tests, such as the t-test, chi-square test, and F-test.

The critical value is the value of a statistic that is used to determine whether a hypothesis test result is statistically significant. It is the point on the test statistic distribution at which the null hypothesis is rejected. To calculate the critical value, you need to know the degrees of freedom, the level of significance, and the type of test statistic. For example, if you are conducting a two-tailed t-test with a level of significance of 0.05 and 20 degrees of freedom, the critical value would be 2.093.

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