For an F distribution, the number of degrees of freedom for the numerator

In English, when the numerator equals two or is bigger than two, a plural-s needs to be added to the ______ .

To avoid the problem of not having access to Tables of F distribution with values given for the lower tail, the numerator of the test statistic should be the one with

Which of the following is the numerator when calculating cumulative incidence? () A: New cases B: The number of new and prevalent cases of a disease C: Number of people infected D: Number of cases E: Number of individuals recovered

A characteristic of the payback method(before taxes)is that it ( )（税前）投资回收期的一个特点是( ) A: Neglects total project profitability. 忽略了项目总盈利能力。 B: Incorporates the time value of money. 考虑了货币的时间价值。 C: Uses accrual accounting inflows in the numerator of the calculation. 在计算分子中使用权责发生会计流入。 D: Uses the estimated expected life of the asset in the denominator of the calculation.在计算的分母中使用资产的估计预期寿命。