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Size: 991
Comment:
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Size: 1059
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 5: | Line 5: |
| Add your row to the table below, following the examples already there. Column 1 = name. Columns 1 + 2 + 3 = values for n = 3, namely: value of x = M / S' where S' = S / sqrt(n), and the p-values for the Z-test and the T-test, respectively. Columns 4 + 5 + 6 = same values for n = 10. Please write all values with exactly one digit after the dot. | Add your row to the table below, following the examples already there. Column 1 = name. Columns 1 + 2 + 3 + 4 + 5 = values for n = 3, namely: difference M of means, estimated standard deviation S', value of test statistic x = M / S', and the p-values for the Z-test and the T-test, respectively. Columns 6 + 7 + 8 + 9 + 10 = same values for n = 10. Please write all values with exactly one digit after the dot. |
| Line 9: | Line 9: |
| ||<|2>'''Name''' ||<-5>'''n=3'''||<-5>'''n=10'''|| | ||<|2>'''Name''' ||<:-5>'''n=3'''||<:-5>'''n=10'''|| |
| Line 11: | Line 11: |
| ||Nikolaus M ||??||??||??||100.0% ||100.0% ||??||??|??||100.0% ||100.0% || | ||Nikolaus M ||??||??||??||100.0% ||100.0% ||??||??||??||100.0% ||100.0% || |
Results for Exercise Sheet 13 (Statistical significance)
Please read the instructions below, before adding something to the table!
Add your row to the table below, following the examples already there. Column 1 = name. Columns 1 + 2 + 3 + 4 + 5 = values for n = 3, namely: difference M of means, estimated standard deviation S', value of test statistic x = M / S', and the p-values for the Z-test and the T-test, respectively. Columns 6 + 7 + 8 + 9 + 10 = same values for n = 10. Please write all values with exactly one digit after the dot.
Recall: experiment to measure query times for tables with hex vs. integer ids for person names when joining acted_in and has_won on their respective first column.
Name |
n=3 |
n=10 |
||||||||
M |
S' = S/sqrt(n) |
x = M / S' |
Pr(Z >= x) |
Pr(T >= x) |
M |
S' = S/sqrt(n) |
x = M / S' |
Pr(Z >= x) |
Pr(T >= x) |
|
Nikolaus M |
?? |
?? |
?? |
100.0% |
100.0% |
?? |
?? |
?? |
100.0% |
100.0% |