YSI BOD Analyst Pro - Manual (Page 75)

YSI BOD Analyst Pro ® User Manual 75
From the spreadsheet data you can format data to make reports or tables that suit your needs. In
addition you may use the plotting functions of the spreadsheet application program to plot or
chart the data. And the imported data can be used to check a variety of statistical information
using Microsoft Excel’s simple to use mathematical functions.
9.4 STATISTICAL INFORMATION ABOUT SAMPLES
After creating a graph as described above click on the Stats button to display a window of
statistical information related to the one or two samples that you selected for analysis. Below is
an example from the data on the LC Standard T data.
To select statistical lines to be plotted on the graph, click on the Plot checkbox next to the
statistics you want to show then click the OK button. This may be done on the first parameter
only. It includes the mean, maximum, and minimum value.
The default values for the four lines displayed by the Standard Deviation (
) section are the
Mean  2 and the Mean  3. The 2 and 3 are designated First Factor and Second Factor and
can be changed in the two fields by the resulting values.
The Precision section multiplies the Mean by standard Shewhart factors. These factors may also
be changed if needed. Refer to a statistics reference book to learn more about how these factors
are used in statistical analysis when small numbers of samples require evaluation.
The values shown in the Quality Control section are values that have been entered in the QC
fields of the Sample Setup. You decide what these values should be based on your application.