The same context as the Excel question, but now needs to be completed by hand. Suppose that we had the following data as opposed to the ones given in the Excel file. Now, ensure to include the null and alternative hypotheses, along with showing all of the steps. It is too much work finding the means, sample standard deviation and sample variance, hence, for those three metrics only, you are allowed to use Excel for them. However, the rest needs to be done by hand. Ensure to explain what the conclusion means in terms of the question's context (i.e., not just reject or fail to reject). Use only the classical approach with a level of significance of = 0.05.