课程名称︰统计学下 课程性质︰森林系必修 课程教师︰关秉宗 开课学院：生农学院 开课系所︰神经认知学程 森林环境暨资源学系 考试日期（年月日）︰2009/4/16 考试时限（分钟）：三小时 是否需发放奖励金：好啊 I. An animal ecologist suggests three methods to prevent squirrels from damaging Cryptomeria planations. To determine the effecti- veness of the three methods, a small experiement was conducted with "9" replications for each treatment(method). The "Treatment Total" of each method is listed below. Mean square error (MSE) of the experiment is 60. Please 1) state an appropriate model and its assumptions, 2) state the null and alternative hypotheses, and 3) construct a complete ANOVA table based on the given information and state your conclusions. Let the type I error rate of the test be 0.05. Assuming all the regular assumptions hold. (30%) －－－－－－－－－－－－－－－－－－－－－－－－－－－－－ Method __________________________ I II III Treatment Total 234 324 189 －－－－－－－－－－－－－－－－－－－－－－－－－－－－－ II. The analysis of variance table below represents part of the calcuation for testing the null hypothesis u1= u2= u3= u4= u5. Complete the table and test the null hypothesis at alpha= 0.01. (20%) ┌───┬─┬──┬──┬───┐ │SOV │df│ SS │ MS │ F* │ ├───┼─┼──┼──┼───┤ │Model │ │ 40 │ │ │ ├───┼─┼──┼──┼───┤ │Error │ │ │ │ │ ├───┼─┼──┼──┼───┤ │Total │16│160 │ │ │ └───┴─┴──┴──┴───┘ III. I conducted an experiment to compare the effects of three fertilizers on the growth of a species, and I obtained the following results. Treatment n Treat mean T1 5 0.082 T2 5 0.813 T3 5 0.234 The SSE is 0.0413 Please onstruct an ANOVA Tablefor the above data and state your conclu- sions. (20%) IV. I have conducted an experiment using a CRD design with three treatments. The following are the results of my experiment. Please tell me whether my treatment means are different at alpha= 0.05 level. Please also include the model as well as the assumptions of the model that you have usedin analyzing my data. (30%) 此题几乎每年都考 T1: 3 5 4 4 T2: 3 4 2 3 2 T3: 5 5 7 --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 211.74.221.105 ※ 编辑: Luziny 来自: 211.74.221.105 (04/17 15:13)