A one-tailed test in statistics is used to determine if a sample mean ... how much higher the portfolio return is than the index return and whether the difference is significant. If the p-value is ...

Statistical significance is a critical concept in data analysis and research. In essence, it’s a measure that allows researchers to assess whether the results of an experiment or study are due to ...

The books Lies, Damn Lies, and Statistics (Wheeler, 1976) and Damned Lies and Statistics (Best, 2001) have raised questions about whether statistics can be trusted. A number of educated people today, ...

Watch parts 1 and 2 of our conversation with Dr Collins.