The world’s Largest Sharp Brain Virtual Experts Marketplace Just a click Away
Levels Tought:
Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | Apr 2017 |
| Last Sign in: | 328 Weeks Ago, 2 Days Ago |
| Questions Answered: | 12843 |
| Tutorials Posted: | 12834 |
MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
In 2010, Bank of America reported that 7.1% of its credit card holders were at least 40 days overdue on their monthly payments. In 2014, a sample of 450 credit card customers found that 20 were at least 30 days overdue on their monthly payments. Using a 90% confidence interval, can you conclude that the proportion of delinquent card holders changed since 2010?
-----------