This applet allows users to drag sliders to change the confidence level and sample size. The applet helps users visualize the meaning of the phrase "C% confidence," by showing that C% of the samples ...

The end points of a confidence interval for the noncentrality parameter of noncentral χ 2 or F are identified as upper and lower percentage points of a distribution. It is shown how these can be ...

This web calculator allows users to specify the number of subjects in the "exposed" and "control" groups with positive and negative outcomes. After providing the data, the calculator will show a table ...

I've become alarmed recently at the number of young engineers (i.e. those with less than 5 years of work experience), who seem to have missed the college course on applied probability and don't know ...

Human brains are constantly processing data to make statistical assessments that translate into the feeling we call confidence, according to a study published May 4, 2016 in Neuron. This feeling of ...

The brain produces feelings of confidence that inform decisions the same way statistics pulls patterns out of noisy data. This feeling of confidence is central to decision making, and, despite ample ...

The directions, which came via cell phone, were a little garbled, but as you understood them: "Turn left at the 3rd light and go straight; the restaurant will be on your right side." Ten minutes ago ...