When comparing two groups in a scientific study, statistical significance indicated by a p-value of less than 0.05 means that, in the case where there was no real difference between groups, there ...

A line graph could be used to show the changes in a country's employment structure over time. This graph shows that in the post-industrial era approximately 11% of employed people work in primary ...

A t-test is an inferential statistic used in hypothesis testing to determine if there is a statistically significant difference between the means of two samples.