... 0051 (5. 161 0
76
) would b e shown as 5.1E -6.
Using the Paste Function we can calculate the mean and standard deviat ion
from the butter£y data. Firstly we will calculate the mean and standard devia-
tion ... and used.
Data Analysis and Presentation Skills by Jackie Willis.
& 2004 John Wiley & Sons, Ltd ISBN 0470852739 (cased) ISBN 0470852747 (paperback)
two numb...
... phenolphthalein between 450 and 65 0 nm
Wavelength
(nm)
450 5 00 520 530 540 550 555 560 570 580 590 60 0 65 0
Absorbance 0.2 0.51 0 .60 0 .65 0 .68 0.72 0.73 0.73 0 .67 0 .63 0.59 0.49 0.31
Figure 3.15 ... colours and patterns from the Format Data Series options
From the menu, click on the tab for Scale and then change the
default values for the minimum and maximum values to 400...
... cells
containing data on the worksheet and sort using the Alphabe-
tical Sort button on the toolbar). The two data sets now need to
be separated.
Select the data for the treated subjects (n ¼ 16) and copy and
move ... data.
Select the data, i.e. all rows and columns containing data on
the worksheet including labels. Using the Datajj Sort command
select Sign6difference from...
... up the proportions, i.e.
9+3+3+1 ¼ 16.
The next step in to calculate what 1/16th of the total will
represent: i.e. 16 parts ¼129 peas, so 1 part ¼129/
16 ¼8. 062 5. (Calculate the answer using Excel.)
Once ... Replication and click OK.
1 46 5 STATISTICAL ANALYSIS
Least significant difference (LSD) analysis
Using this test we are able to compare all of the differences
between mean...
... greater
66 3 PRESENTING SCIENTIFIC DATA
Figure 3.28 Aligning text in titles
Figure 3.29 Three-dimensional plots
65 PRESENTING GRAPHS AND CHARTS
Figure 3. 26 Editing the legend
Figure 3.27 Displaying data ... of the data (largest
and smallest values) and so does not re£ect the true variation between all of
the values.
The standard deviation and variance
T he standard d eviatio...
... 79.5 135
56 81.8 140
59 84.0 145
60 88 .6 150
62 90.9 155
65 93.2 160
70 97.7 165
from a hand-drawn plot where the line of best fit has been
drawn in by placing a ruler onto the plot and determining ... the Data Analysis option in
Excel.
Enter the data onto the worksheet in two columns as shown
below:
Low fat margarine New margarine
175 139
168 145
154 165
163 132
171 170
13...