STAT 200 Study Guide - Final Guide: Summary Statistics, Telephone Directory, Scatter Plot

• School: UBC
• Department: Statistics
• Course: STAT 200
• Professor: All

Document Summary

Note: this modified version is slightly shorter than a standard 2. 5 hour final exam. A medical researcher is interested in examining the relationship between the duration of catheterization and whether or not an infection occurred. The thought is that whether or not an infection occurs may be related to the duration of catheterization. She collects data on 266 patients and the data is presented in the two-way table below. [5] (b) complete a hypothesis test to decide if whether or not an infection occurred is independent of the duration. Use a significance level of 1% and make sure to state your hypotheses and a conclusion. A geneticist is interested in studying the function of a particular gene. As a starting point to the study she wishes to determine if the gene"s expression is the same in a stem cell, a mesoderm cell and a neuronal cell. She estimates the gene"s expression for each cell type a few times.