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Excel Data Analysis Toolpak (PC): Link Excel Data Analysis Toolpak (Mac but recommend practice with PC instead): Link Lecture Run Time (without pausing): 16 minutes Plus spreadsheet submission Assignments Due Before Class for September 1st: Practice Exercise: Link Syllabus Signature (Due by September 3rd): Link. Biology: Data Analysis and Interpretation. Presenter: Dr Gurion Ang, The University of Queensland Overall description of mini-MOOC: This mini-MOOC about basic data analysis and interpretation for science is delivered in the context of the senior Biology syllabus but may also be applicable to other subjects, such as Agricultural Science, Earth and Environmental Science, and Marine Science.
Paired t-test Using Microsoft Excel
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These tutorials briefly explain the use and interpretation of standard statistical analysis techniques. The examples include how-to instructions for Excel. Although there are different version of Excel in use, these should work about the same for most recent versions. They also assume that you have installed the Excel Analysis Pak which is free and comes with Excel (Go to Tools, Addins.. if it is not already installed in your version of Excel.)
- Data Analysis Plus v9.0 (with VBA 6) Microsoft Excel 97 - 2016 on Windows OS Office 2001 for Mac OS Office 2004 for Mac OS.NOTE: Help file (.CHM) is a stand-alone reference and will not launch from within Excel.NOTE: With Excel 2013 Or Excel 2016, the 'Data Analysis' macros must be disabled to run the 'Data Analysis Plus' macros.
- Chapter Technology Projects – Each chapter has a Technology project using Minitab, Excel, and the TI-84 Plus that gives students insight into how technology is used to handle large data sets or real-life questions. The variety of real-life applications are representative of the majors of students taking introductory statistics courses.
- Analysis ToolPak Guide: This is a supplement to our books for those of you who would like to use Excel’s built-in Analysis ToolPak add-in, rather than StatTools, for statistical analysis. The zip file contains a pdf version of the guide and accompanying data files: Analysis ToolPak Guide.zip.
Performing a Paired t-test in Excel
To compare two paired values (such as in a before-after situation) where both observations are taken from the same or matched subjects, you can perform a paired t- For example, suppose your data contained the variables BEFORE and AFTER, (before and after weight on a diet), for 8 subjects. The hypotheses for this test are:
Ho: mLoss = 0 (The average weight loss was 0)
Ha: mLoss ≠ 0 (The weight loss was different than 0)
For example, the following weight loss data is used in this example
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(DIET.XLS)
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Before | After |
162.00 | 168.00 |
170.00 | 136.00 |
184.00 | 147.00 |
164.00 | 159.00 |
172.00 | 143.00 |
176.00 | 161.00 |
159.00 | 143.00 |
170.00 | 145.00 |
1.To perform a paired t-test, select Tools/ Data Analysis / t-test: Paired two sample for means.
Data Analysis Excel Mac
2.In the t-test: Paired two sample for means dialog box: For the Input Range for Variable 1, highlight the 8 values of Score in group “Before” (values from 162 to 170). For the input range for Variable 2, highlight the eight values of Score in group “After” (values from 168 to 145). For now, leave the other items at their default selections. This dialog box is shown below. Click OK. This dialog box is shown below:
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3.The results are shown in the output below:
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t-Test: Paired Two Sample for Means | ||
Variable 1 | Variable 2 | |
169.625 | 150.25 | |
Variance | 65.125 | 121.9285714 |
Observations | 8 | 8 |
Pearson Correlation | -0.176747772 | |
Hypothesized Mean Difference | 0 | |
df | 7 | |
t Stat | 3.706873373 Skyblock mac. | |
P(T<=t) one-tail | 0.003792994 | |
t Critical one-tail | 1.894578604 | |
P(T<=t) two-tail | 0.007585988 | |
t Critical two-tail | 2.364624251 |