Two Means - Unknown, Equal Variance: Videos & Practice Problems

A psychologist claims that the average stress levels of two different professions are equal. In a sample of $15$ teachers, the mean stress score is $21.5$ with a standard deviation of $3.7$. In a sample of $13$ nurses, the mean stress score is $23.1$ with a standard deviation of $4.2$. At $\alpha =0.10$, can you reject the psychologist’s claim? Assume equal population variances.