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Metadata
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England schools
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England university
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Scotland schools
Taxonomy: mathcentre
Taxonomy: Kind of activity
Taxonomy: Context
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From users who are not members of Keith's workspace :
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said | Ready to use | 8 years, 9 months ago |
History
Christian Lawson-Perfect 8 years, 9 months ago
Gave some feedback: Ready to use
Keith McGuinness 9 years, 8 months ago
Created this as a copy of A comparison of the means of three groups (2)..There are 2 other versions that do you not have access to.
Name | Type | Generated Value |
---|
cval | number |
0.537
|
||||
dfamong | integer |
2
|
||||
dftotal | integer |
17
|
||||
dfwithin | integer |
15
|
||||
fratio | number |
681.274
|
||||
ftable | number |
3.68
|
||||
grp1 | list |
List of 6 items
|
||||
grp2 | list |
List of 6 items
|
||||
grp3 | list |
List of 6 items
|
||||
mean1 | number |
52.650
|
||||
mean2 | number |
75.017
|
||||
mean3 | number |
60.200
|
||||
msamong | number |
776.8038888889
|
||||
mswithin | number |
1.1402222222
|
||||
object | string |
Athlete
|
||||
objects | string |
Athletes
|
||||
outcome | integer |
1
|
||||
s1 | number |
70587.7688888889
|
||||
s2 | number |
72158.48
|
||||
s3 | number |
72141.3766666666
|
||||
sig1 | integer |
1
|
||||
slip | number |
0.025
|
||||
ssamong | number |
1553.6077777778
|
||||
sstotal | number |
1570.7111111111
|
||||
sswithin | number |
17.1033333333
|
||||
sumallx | number |
1127.2
|
||||
sumsq1 | number |
16638.91
|
||||
sumsq2 | number |
33766.15
|
||||
sumsq3 | number |
21753.42
|
||||
sumx1 | number |
315.9
|
||||
sumx2 | number |
450.1
|
||||
sumx3 | number |
361.2
|
||||
treat1 | number |
53
|
||||
treat2 | number |
75
|
||||
treat3 | number |
60
|
||||
tuk12 | number |
22.367
|
||||
tuk12sig | integer |
1
|
||||
tuk13 | number |
7.55
|
||||
tuk13sig | integer |
1
|
||||
tuk23 | number |
14.817
|
||||
tuk23sig | integer |
1
|
||||
tukse | number |
0.436
|
||||
tukssd | number |
1.600
|
||||
tukval | number |
3.67
|
||||
var1 | number |
1.355
|
||||
var2 | number |
0.230
|
||||
var3 | number |
1.836
|
Generated value: number
This variable doesn't seem to be used anywhere.
Parts
Gap-fill
Ask the student a question, and give any hints about how they should answer this part.
Summary statistics
Calculate means and variances for both groups: variance (s2) is just the standard deviation (s or sd) squared.
Note: All values, except df and outcome, should be given to 3 decimal places.
Mean 1 =
Variance 1 =
n1 = 6; n2 = 6; n3 = 6
Cochran's value =
(Normally, we would compare the Cochran's value to the table (0.707) and transform the data if required, but this makes this too complicated, so we will assume that the calculated value is always lower than the table value.)
In the next part, you enter the values for the intermediate terms.
Use this tab to check that this question works as expected.
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