| Hand Calculations The objective of hand calculations is to introduce the basic underlying
mathematics and concepts of an analytical technique. Unless instructed otherwise, round
all calculations to three decimal places. You should also note that you can check your
calculations with SumStats. There will be some variations since SumStats does not round to
three decimal places (SumStats is more accurate).
Using AcaStat
The objective of SumStats problems is to show you
how to conduct statistical comparisons when the raw data are not available. This is often
the case if you only have summary statistics from a report produced by someone else.
SumStats simply automates the hand calculations covered in the Workbook. The objective of
AcaStat spreadsheet problems is to connect hand calculations using summary statistics to
the more common practice of analyzing raw data with statistical software. If you do not
have AcaStat, these exercises can be used with other statistical software to include SAS,
SPSS, STATA, etc.
Workbook Download
The following link downloads a
self-extracting compressed copy of the Workbook (expect a short delay after clicking
the link). After downloading, double-click "Workbook.exe" to unzip
"Workbook.pdf". If you own AcaStat, save "Workbook.pdf"
to the program directory "C:\Program Files\AcaStat-5". When you open
AcaStat, you can access the Workbook from the Documentation pulldown menu.
The self-extraction file does not work on
Apple computers and may be blocked by some internet browsers if your security setting is
configured to stop executable files (*.exe files). If you have difficulty, you may view,
save, or print the document on line from your internet browser (click "View On
Line" link). It should appear in your browser as long as you have Acrobat Reader 4.0
or more recent. While viewing the document in your browser, click the save icon and
select a folder on your computer to store the file (file size is about double the
self-extraction version).
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