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, ...

Sampling error refers to the difference between our survey estimate and what we would have found had we been able to interview everyone in the population. When it is reported, it is described as “plus ...

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 ...

Log-in to bookmark & organize content - it's free! CBS Elections and Surveys Director Anthony Salvanto discussed the idea of margin of error and how sampling error ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Academic survey researchers tend to differ ...

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 ...