The evidence is collected in the form of a sample, and the statistician must then decide. There are two possible errors. The statistician could mistakenly reject a true null hypothesis (called a Type I error), or mistakenly accept a false null hypothesis (called a Type II error).The benefit of the doubt goes to the null hypothesis, which is assumed to be true until the evidence seems to indicate otherwise.he level of significance $\alpha$ is the probability of a Type I error. That is, $\alpha$ is the probability of rejecting a true null hypothesis. In our example above, that probability was 5%.
Job applicants converse outside the Staffmark temp agency in Cypress, Calif. Temporary employment agencies -- popularly known as temp agencies -- provide workers to a variety of businesses via short-term contracts or indefinite temporary positions.
Glassdoorâs top 25 companies for internships. Looking for an internship this summer? More than 4,700 US companies are hiring interns, according to the career company Glassdoor. Glassdoor looked at 20 cities with employers hiring interns and found Boston ranked at number six with more than 300 companies looking to hire young talent. Glassdoor also released its annual list of the 25 Highest Rated Companies Hiring Interns in 2014.