It’s in vogue these days to declare the building blocks of statistical inference irrelevant to assessing the performance of schools. For example, Joel Klein recently argued that statistical ...

A simple random sample is a subset of a statistical population where each member of the population is equally likely to be ...

Sometimes, news stories on the same day report on two or more surveys with different results about the same topic. Is candidate "A" ahead of candidate "B" by 3 percentage points or trailing by 2 ...

HOLLIDAYSBURG — High levels of lead recently found in samples of drinking water in some homes and buildings in Hollidaysburg Borough were the result of a sampling error, according to Rick Pope, ...

The president is underwater with white non-college graduates for the first time in his second White House term.

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 ...

Consider a population of 70 individuals, for which you wish to estimate the mean annual income, μ. Assume that you have decided to use the following estimation procedure to make your estimate: simple ...

Drawn both by lower data collection costs and substantial advantages in how questionnaires can be designed and administered, survey research is rapidly moving to the Web. Adoption of the Web for data ...

When we look in the mirror, it’s easy to see not only the physical attributes that define our unique features, but also the layers beneath that makeup who we are — those tired eyes given as a gift of ...

NEWS APP FOR WEATHER ALERTS ANYTIME. WATER QUALITY IN THE CITY OF RIVIERA BEACH IS TAKING CENTER STAGE AGAIN TONIGHT, BUT THIS TIME IT’S BECAUSE A REPORT SUGGESTS THE WATER MAY HAVE ALWAYS BEEN SAFE ...

You can’t get into an argument about polls without some wise guy whipping out the “margin of error” to shut down the other side. But what is the margin of error, exactly? (Or, as Gilda Radner’s ...

Consider a population of 70 individuals, for which you wish to estimate the mean annual income, μ. Assume that you have decided to use the following estimation procedure to make your estimate: simple ...