Use a t-distribution to answer this question. assume the samples are random samples from distributions that are reasonably normally distributed, and that a t-statistic will be used for inference about the difference in sample means. state the degrees of freedom used.
1. find the endpoints of the t-distribution with 2.5% beyond them in each tail if the samples have sizes n1 =15 and n2 =25
enter the exact answer for the degrees of freedom and round your answer for the endpoints to two decimal places.

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.