The threshold for statistical significance is often set at 0.05, or 5%. When the p-value is less than or equal to 0.05, the ...

When we reject the null hypothesis, we are essentially saying that the observed data provides sufficient evidence to conclude ...

Melissa Horton is a financial literacy professional. She has 10+ years of experience in the financial services and planning industry. Robert Kelly is managing director of XTS Energy LLC, and has more ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Social Security's annual COLA calculations are under scrutiny from advocacy groups, with some calling for different metrics to be used to boost or reduce the inflation adjustments.

Some of the models used to forecast everything from financial trends to animal populations in an ecosystem are incorrect, ...

Axios Visuals A majority of voters blame President Trump for rising prices, according to a recent poll, marking a possible midterm warning sign for Republicans. The big picture: The cost of living is ...

US Homeland Security Secretary Kristi Noem has again claimed that "1.6 million self-deportations" of undocumented immigrants ...

The nuts and bolts of our public opinion surveys. A summary of ABC News' polling standards and survey methodology follows. ABC News maintains standards for disclosure, validity, reliability and ...

There were cheers in the Treasury last month as the nation’s statisticians discovered a spare £3 billion down the ...

One researcher could have changed everything we know about death. But does the science hold up against scrutiny?