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 = value of x = M / S * sqrt(n), and Pr(X >= x) for Z-test and T-test, for n = 3. Columns 4 + 5 + 6 = same 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 |
x = M / S * sqrt(n), n = 3 |
Pr(Z >= x), n = 3 |
Pr(T >= x), n = 3 |
x = M / S * sqrt(n), n = 10 |
Pr(Z >= x), n = 10 |
Pr(T >= x), n = 10 |
Nikolaus M |
?? |
100.0% |
100.0% |
?? |
100.0% |
100.0% |