Statistics Hypothesis Testing Chapter

Could you please double check and let me know if the way you have calculated Pooled Variance is correct. I can see that the formula is correct but when I do the calculation in excel I get a different answer. I'm pretty sure the calculation that has been done in the Excel files for pooled variance is not correct. Example of this is question 6 of practice exam 4 at the end of the Hypothesis Testing Chapter of the course. 

See screen shot below. The formula is correct but when I calculate I dont get the same answer as outlined in red in the attached image.

Look forward to hearing clarification. 

My formula in Excel is also attached as image.