Beware the dangers of google. Google is a great tool, but it is necessary to be skeptical and evaluate the provided results. For example, upon google searching "standard error of the difference between two means" the first hit is a link E to a web page from Keane University where the equation for the standard error of the difference between two means is given as 01 SEN 21 - H 2 n1 n2 However, the text book gives the equation below as the standard error for the difference between two means as SE Y 1 - n2 Why are these two formulas different? How can you tell? Which one is correct? 0 01 01 SEW 21 - H2 n1 n2 is the equation for the standard error of two population means, while SE_ p Y 1 - is the equation for the standard error of two sample means.9 oi oi SEuzluz = 71+\": is the equation for the standard error of two sample means, while SE = 52 i+i fl- {'2 '0 l71 \"2 is the equation for the standard error of two population means. C] Greek letters are usually used in the equations for population parameters, while Latin letters are usually used in the equations for sample statistics. C] Latin letters are usually used in the equations for population parameters, while Greek letters are usually used in the equations for sample statistics. C] The population parameter equation is only correct to use when the data set encompasses the entire population. C] The sample statistic equation is correct to use when the data set is from a subset of the entire population