What happens to the degrees of freedom and graph of the t-distribution as the sample size increases?
The formula for degrees of freedom is n-1 - so the larger the sample size, the higher the degrees of freedom. They are a measure of the amount of information from the sample data that has been used up. Every time a statistic is calculated from a sample, one degree of freedom is used up.
Now let us look at the t-distribution. A 'normal' bell curve occurs when you have at least 30 people in your sample. In a normal bell ...
What happens to the degree of freedom and graph of the t-distribution as the sample size increases is determined.