Date of Award


Document Type


Degree Name

Bachelor of Arts



First Advisor

Paul Kvam

Second Advisor

Saif Mehkari


Small businesses, particularly restaurants, play a crucial role in the economy by generating employment opportunities, boosting tourism, and contributing to the local economy. However, accurately estimating their lifetimes can be challenging due to the presence of length bias, which occurs when the likelihood of sampling any particular restaurant's closure is influenced by its duration in operation. To address the issue, this study conducts goodness-of-fit tests on exponential/gamma family distributions and employs the Kaplan-Meier method to more accurately estimate the average lifetime of restaurants in Carytown. By providing insights into the challenges of estimating the lifetimes of small businesses, this study contributes to our understanding of the broader economic impact of these businesses and the development of policies that support small businesses.

2023-Li-form.pdf (209 kB)