Daniel Peterkin ~ b. 1871 ~ Businessman. Born Scotland. son of James and Isabella (Hall) Peterkin; ed. in Scotland; came to US in 1892; married 1904 Jeanette, daughter of Charles H. Knights of Chicago; children: Daniel and Jeanette.e brought the total up to 83 in the first years of this century. The herd came to number as many as 900. In 1906 an act of Congress provided Philip with 3,500 acres at nominal rent, the first time the government of the U.S. moved to save a species from extinction.
In statistical hypothesis testing, a type I error is the incorrect rejection of a true null hypothesis (a false positive), while a type II error is the failure to reject a false null hypothesis (a false negative).he rate of the type II error is denoted by the Greek letter Î² (beta) and related to the power of a test (which equals 1âÎ²). What we actually call type I or type II error depends directly on the null hypothesis. Negation of the null hypothesis causes type I and type II errors to switch roles.
In the significance testing approach of Ronald Fisher, a null hypothesis is rejected if the observed data is significantly unlikely if the null hypothesis were true. In this case the null hypothesis is rejected and an alternative hypothesis is accepted in its place. If the data are consistent with the null hypothesis, then the null hypothesis is not rejected (i.e., accepted). In neither case is the null hypothesis or its alternative proven; the null hypothesis is tested with data and a decision is made based on how likely or unlikely the data is.