※ [本文轉錄自 NCCU 看板 #1DqZoz-5 ] 作者: Photovoltaic (Neil出的第二集) 看板: NCCU 標題: [誠徵] SPSS高手代寫英文文章,代價 6000元以上 時間: Tue May 17 17:15:38 2011 誠徵SPSS高手針對回答問題, 不能有抄襲之疑慮, 需以英文形式呈現, 代價新台幣 8000元以上, 交期 5 / 25日, 可預付1/2訂金, 意者請寫信至 [email protected], 價格可根據情況商議 或電洽:0928137874 楊博士 Detailed Questions [1] Converting excel data into SPSS data file, classifying data and defining variables Import the excel data file gradsurvey data into SPSS and save the file with a name of your choice. Clearly describe the variables in the data in a variable description table by classifying them according to the type of data: quantitative/numerical versus qualitative/non-numerical; categorical versus continuous and according to the levels (or scales) of measurement they represent: nominal, ordinal or interval. Use your table to assist you define all your variables, in the Variable View window: ensure that you set the variable attributes as described in your table. [10 marks] [2] Describing Categorical Data The MBA is aimed at graduates from various academic disciplines with management experience who want to gain a formal qualification in management. You are required to conduct some basic analysis to determine the makeup of the students' previous academic backgrounds. a. Use an appropriate chart to display the variation in undergraduate specialism. Which are the modal and least popular undergraduate specialist subjects? [4 marks] b. Repeat the previous part's analysis but this take gender in to account. Does there appear to be a difference in the gender undergraduate backgrounds? [8 marks] c. From your analyses can you foresee any potential intake issues for the current sample? Clear explain your rationale for any decision made.[4 marks] [3] Describing Quantitative Data The MBA programme leader is interested in how student performance has changed from undergraduate to graduate, and considers cumulative GPA scores as the data to be analysed. a. Produce a single chart containing box-plots of undergraduate and graduate cumulative GPA scores. Discuss their differences and describe any overall trend. [5 marks] b. Obtain the mean and standard deviation for the two sets of cumulative GPA scores. Use these values to calculate the coefficient of variation for each set. Do the values obtained support your conclusions drawn from your box plots? Clearly explain your rationale. [5 marks] [4] Distributions The MBA programme leader wishes to know if the GMAT scores are normally distributed, as a requirement for an annual review. Carry out appropriate tests of normality on the GMAT score. Apply three tests (tools) and remember to interpret your results. [10 marks] [5] Hypothesis test The MBA programme leader is interested to know if there is any significant average age difference between males and females and if there is which is the older group. a. Suggest a null hypothesis and an alternative hypothesis for testing the mean age for male and female students. [4 marks] b. Carry out an appropriate test to compare the mean age for the two sexes, and interpret your results. [6 marks] [6] Data manipulation and analysis The part of the MBA annual review requires a summary of feedback of student support services. To help summarise students opinion, create a new variable out of the satisfaction variable by collapsing the existing variable into three categories - 'Unsatisfied (1--2)', 'Neutral (3--5)' and 'Satisfied (6-7)' .You may name the new variable satiscat; and then give it an appropriate label. Analyse the collapsed satisfaction categories so as to compare the levels of satisfaction for the two sexes; remember to apply an appropriate test of association. [10 marks] [7] Correlation and regression The MBA programme leader has become so enthralled with the benefits of using statistical analysis as a performance indicator toolkit, then decides that further analyses on student performance, expected and anticipated salaries ought to be carried out. a. Produce a scatter matrix plot for the following variables: Undergraduate cumulative GPA, cumulative Graduate GPA, GMAT, expected salary and anticipated salary. Include this plot in your report and use it to comment upon the streng ths and directions of the associated correlations.[14 marks] b. Perform linear correlation and simple regression on the cumulative Undergraduate and Graduate GPA scores. How does the information compare to the conclusions that you made in part a? [6 marks] c. Perform a multiple regression treating anticipated salary as the outcome variable and expected salary, graduate cumulative grade point average and GMAT as predictor variables. Why or why not do the three variables sufficiently predict students' anticipated salary? [10 marks] --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.113.0.109 ※ Photovoltaic:轉錄至看板 NTU 05/17 17:16 --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.119.140.17