Spoiler alert, real data are seldom normally distributed. How does the population distribution influence the estimate of the population mean and its confidence interval?
To figure this out, we randomly draw 100 observations 100 times from three distinct populations and plot the mean and corresponding 95% confidence interval of each sample.
(more…)
Why We Needed a Random Sample of 6 numbers between 1 and 10000
As you may have read in one of our recent newsletters, this month The Analysis Factor hit two milestones:
- 10,000 subscribers to our mailing list
- 6 years in business.
We’re quite happy about both, and seriously grateful to all members of our community.
So to celebrate and to say thanks, we decided to do a giveaway to 6 randomly-chosen newsletter subscribers.
I just sent emails to the 6 winners this morning.
How We Randomly Generated 6 Equally Likely Values out of 10000 Using R Commander (more…)
