Exercise

Exercise 4. Error impact on SD

In the previous exercise we saw how a simple mistake in 1 out of over 900 observations can result in the average of our data increasing more than half an inch, which is a large difference in practical terms. Now let's explore the effect this outlier has on the standard deviation.

Instructions

100 XP

Report how many inches the SD grows after this mistake. Specifically, report the difference between the SD of the data with the mistake x_with_error and the data without the mistake x.