 If you're going to use Excel in Business 233 it comes with a data analytics pack that all you have to do is activate, it's free with Excel and it will provide you with quite a few statistical tools to help you in the course. But it does not have everything. Now you can use all of the many functions and formulas that are built into Excel to build out the equations that you see in your text for solving confidence intervals and hypothesis tests and chi-square tests and descriptive statistics. You can do that. It takes time. Once you do it you can save and label your spreadsheet and reuse it on other problems and on quizzes and exams. But one thing I recommend you consider is buying a copy of PhSTAT and it's only $10 and because you have an account with Pearson in that you're using my stat lab you may be able to get it for free but at the worst case you can get it for $10. All you need to do is to navigate to this website or actually you can just go to Google and type in buy phstat but go to this website and this page will come up and it will say if you have an access code and you can try I think your access code for my stat lab and it may allow you to get phstat for free I just haven't tried that but I do know you can buy it for $10 using a credit card and all you've got to do is to go down here and click on register for phstat it brings up this dialogue. You can see that it recognizes my old email here and it says my subscription expired for phstat back on $122 but I can click on get access, get back to this page, purchase ph access and then it says their full access to the site is $10 and that is the website that has a lot of tools in it among them is phstat. If you don't have a Pearson account just click on know and then create a login and just follow the instructions and one thing I would note you will get to a page where you have to put in the zip code for your school in this case it would be Excelsior's zip code and then it would offer you Excelsior as one of the options of the schools. Make sure you put in the zip code for Excelsior and not your own zip code that drove me crazy for a while because I kept putting in my home zip code instead of the school zip code that I was going to use but anyway it will lead you through and a few steps of course ask you for your credit card and for $10 you will get access to phstat and it's a wonderful tool has a lot of stuff that you will use not only for business 233 but later on if you take business for 30 quantitative you will use phstat there as well so it's one tool to remember.