Introduce project
Hang out with the TAs from STA 199! This is a casual conversation and a fun opportunity to meet the members of the STA 199 teaching time. The only rule is these canโt turn into office hours!
Tea with a TA counts as a statistics experience.
Clone the ae-13 repo and start a new project in RStudio.
Suppose the mean bone density for a 65-year old woman is normally distributed with mean 809 mg/cm3 and standard deviation of 140 mg/cm3 (these are actually pretty accurate numbers).
What bone densities correspond to the 5th, 10th, 50th, and 99th percentiles of this distribution?
The densities of three woods are below:
What is the probability that a random 65-year old woman has bones less dense than each of these three woods?
What is the probability that, for a group of 10 randomly sampled 65-year old women, the mean bone density of the group is less dense than these three woods?
Explain the differences between your answers in Exercise 2 and 3.