Course Content

  • Z-Table, T-Table , Chi-Square Table

Course Content


The F-test is the ratio of the mean squared error between these two groups, and ANOVA isolates within-group and between-group variance.

When the standard deviation is unknown and the sample size is small, the T-test is used as a univariate hypothesis test. The F-test is a statistical test that examines if the variances of two normal populations are equal.

A researcher use the F-test to do a test for the equivalence of the two population variances. The F-test is used when a researcher wishes to see if two independent samples chosen from a normal population with the same variability are comparable.

Because variances are usually positive, F's numerator and denominator must be positive as well. As a result, F must always be a positive number. (If your ANOVA results in a negative F, double-check your calculations.)

ANOVA is used to compare three or more groups. The t-test is less likely to make a mistake. ANOVA carries a higher risk of error. The mean and standard deviation of a sample of students from classes A and B who have taken a mathematics course may differ.

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