Discussion:
Q: A data set can be found at the Data and Story Library site: https://lib.stat.cmu.edu/DASL by searching for Friday the 13th materials.
The data were collected in an effort to study various aspects of human behavior on Friday 13th by monitoring the change in traffic patterns between Friday the 6th and the subsequent Friday the 13th along with shopping traffic and accident reports.
A. Use the data in the accident category from the Friday the 13th data file, along with an appropriate hypothesis test to answer the question: Is Friday the 13th any more unlucky than Friday the 6th?
B. Do more people shop on Friday the 13th? Justify your answer by formulating and executing a hypothesis test.