Continue with Deom of RStudio - You will have time to work with RStudio later in class.
Open ClassDataS21.R- if you want to follow along or you can just watch until I give you time to explore on your own.
Methods of Collecting Data
Census
Sample
Experiment
Observational Study
Anecdotal Evidence
The Idea Behind Sampling
parameters versus statistics
In Class Exercises
Construct appropriate graphs to visually summarize the information collected on the class data survey for the following variables:
ClassYear
Height.in.Inches
Age
HometownPop
Pulse
TextMessages
Favorite.Subject
Varsity.Sport
CatDog
Band.Artist
DominantHand
Exercise.min
FootLength
Use appropriate graphical displays and descriptive statistics to make appropriate comparisons between cat and dog lovers for different variables in the data set we collected during the first class.
Use appropriate graphical displays and descriptive statistics to make appropriate comparisons between the class years for different variables in the data set we collected during the first class.
Is the shape of the distribution for guesses of the length of the black string the same as the distribution of guesses for the length of the white string?
The actual length of the white sting is 46". Is the overall distribution of guesses centered at this value?
The actual length of the black string is 48". Is the overall distribution of guesses centered at the appropriate value?
(Do this exercise "by hand," not with R.) Caution is necessary when constructing histograms
from frequency distributions given in magazines, newspapers, journal articles,
etc. The authors of "Self-Reports of Academic Performance," an article
which appeared in Soc. Methods and Research (1981), studied the difference
in GPA, reported - actual, for each of the students in a sample. Specify
the height of each bar in a correct histogram for the frequency distribution
below and sketch the histogram.