Midterm Exam MATH3630 PDF

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Midterm...

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Midterm Exam MATH3630

spring 2020 written part

The following data analysis case study is presented and questions will be based on the course coverage using SPSS: A researcher is studying the effects of various variables on predicting cholesterol value. Data is collected on the following variables: HDL (a component of the total cholesterol value) LDL (a component of the total cholesterol value) AGE in years WEIGHT GROUP ( 4 groups in all : 1=lowest to 4=highest) GENDER (1=F, 2=M) Question 1. What is the first SPSS procedure that should be used to validate the data? Frequencies 2. What SPSS command will deal with defective data values? Missing values 3. What type of data measurement is AGE? Ordinal Data 4. What type of data is measurement GENDER? Nominal Data 5. What type of data is measurement is WEIGHT GROUP? Scale Data 6. What SPSS command would allow us to run all the analyses for females only? Select Cases 7. What SPSS procedure would allow us to create a new variable (CHOLESTEROL) by adding the HDL and LDL? Compute 8. What SPSS command allows us to get descriptive statistics and boxplots, histogram and stem and leaf plots for HDL and LDL? Explore 9. What SPSS command allows us to look at the relationship between HDL, LDL, and AGE (scale data)? Correlation 10. What type of graph in SPSS would show the bivariate relationship of predicting HDL by AGE? Scatter Plot 11. What SPSS command allows us to change/reverse the values for WEIGHT GROUP by changing the value of “1” to a “4”, a “4” to a “1” etc. Cut Points 12. What type of graph could be used for WEIGHT GROUP? Bar Graph 13. What SPSS command allows us to find the values that would divide AGE into 3 approximately equal size groups? Crosstabs 14. What SPSS command allows us to find the predictor equation for prediction of HDL by AGE? Regression 15. What SPSS command allows us to break down the new variable of CHOLESTEROL by WEIGHT GROUP within GENDER? Mean Command 16. What SPSS command allows us to find the relationship (with Chi-Square) between WEIGHT GROUP and GENDER? Recode

17. What SPSS command allows us to look at the relationship between HDL and LDL while controlling for AGE? Partial Correlation 18. What SPSS procedure allows you to run all analysis for females and males separately? Split Files 19. This SPSS command could be used to find the sample size, the minimum, maximum, mean and standard deviation and z-scores for HDL. Descriptives 20. What SPSS part of the variable view allows us to declare that for GENDER, a 1=F and a 2= M? Value labels...