# Using SPSS to conduct a Paired-samples t-test - SPSS Help

 Recipe A B 1 29 29 2 32 30 3 25 23 4 37 36 5 39 38 6 26 27

 We can provide you with the SPSS Help you need, at any level! Get professional graphs, tables, syntax, and fully completed SPSS projects, with meaningful interpretations and write up, in APA or any format you prefer. Whether it is for a Statistics class, Business Stats class, a Thesis or Dissertation, you'll find what you are looking for with us Our service is convenient and confidential. You will get excellent quality SPSS help for you. Our rate starts at $35/hour. Free quote in hours. Quick turnaround!  Recipe A B 1 29 29 2 32 30 3 25 23 4 37 36 5 39 38 6 26 27 Parametric Analysis $\begin{array}{cc} & {{H}_{0}}:{{\mu }_{A}}\le {{\mu }_{B}} \\ & {{H}_{A}}:{{\mu }_{A}}>{{\mu }_{B}} \\ \end{array}$ • Assumptions: In order to apply a paired samples t-test, we both involved population to be normally distributed. If the distributions depart radically from normal distributions, we should use a non-parametric test instead, like the sign test.  Recipe A B Difference 1 29 29 0 2 32 30 2 3 25 23 2 4 37 36 1 5 39 38 1 6 26 27 -1 Average 0.833333 St. Dev 1.169045 $t=\frac{\bar{D}-{{\mu }_{D}}}{{{s}_{D}}/\sqrt{n}}=\frac{0.8333-0}{1.169045/\sqrt{6}}=1.746075$ ${{t}_{c}}=2.015$ Non Parametric Analysis  Recipe A B Difference 1 29 29 0 2 32 30 + 3 25 23 + 4 37 36 + 5 39 38 + 6 26 27 - $x=1$ Normality Test • Both the parametric and non-parametric approach don't provide enough evidence to support the claim the population mean volume for premix A is significantly greater than the mean volume for premix B. • In order to have a more accurate view, we should a have a bigger sample, to make a more precise statement.  We provide SPSS Help for Students, at any level! Get professional graphs, tables, syntax, and fully completed SPSS projects, with meaningful interpretations and write up, in APA or any format you prefer. Whether it is for a Statistics class, Business Stats class, a Thesis or Dissertation, you'll find what you are looking for with us Our service is convenient and confidential. You will get excellent quality SPSS help for you. Our rate starts at$35/hour. Free quote in hours. Quick turnaround!