Analyse error distributions for ABT nodes representing storage engine (WT) operations:

• Index Seek
• Seek
• Scan

And some non-disk operations, e.g. filter.

1. Run an experiment with about 40 queries for every run
2. Calculate observational statistics of execution time parameter: median, mean, standard deviation, correlation with number of processed rows
3. Check the hypothesis that the distribution of execution time values is close to normal distribution using Kolmogorov-Smirnov test (scipy.stats.kstest). One way is to calculate z-scores= (value - media)/stddev and compare with standard distribution.
4. Create a table with results.