Module 4 Problem Set Due Date: Apr 27, 2016 23:59:59 Max Points: 85 Details: Some commonly employed statistical tests are the independent-samples t-test, paired-samples ttest, and One-Way ANOVA. In this assignment, you will practice conducting independentsamples t-tests, paired-samples t-tests, and One-Way ANOVAs from an SPSS data set. General Requirements: Use the following information to ensure successful completion of the assignment: Review "SPSS Access Instructions" for information on how to access SPSS for this assignment. Access the document, "Introduction to Statistical Analysis Using IBM SPSS Statistics, Student Guide" to complete the assignment. Download the file "Census.sav" and open it with SPSS. Use the data to complete the assignment. Download the file "SPSS_CUST.sav" and open it with SPSS. Use the data to complete the assignment. Directions: Locate the data set "Census.sav" and open it with SPSS. Follow the steps in section 7.14 Learning Activity as written. Answer all of the questions in the activity based on your observations of the SPSS output. Type your answers into a Word document and include supporting graphs or tables from the SPSS output for submission to the instructor. Locate the data set "SPSS_CUST.sav" and open it with SPSS. Follow the steps in section 8.10 Learning Activity as written. Answer all of the questions in the activity based on your observations of the SPSS output. Type your answers into a Word document and include supporting graphs or tables from the SPSS output for submission to the instructor. Locate the data set "Census.sav" and open it with SPSS. Follow the steps in section 9.20 Learning Activity as written. Answer all of the questions in the activity based on your observations of the SPSS output. Type your answers into a Word document and include supporting graphs or tables from the SPSS output for submission to the instructor. RES865.7P5CL_introduction_to_statistical_analysis_using_ibm_spss_statistics.pdf 7.14 Learning Activity In these activities you will use the file Census.sav. The overall goal is to run the IndependentSamples T Test, to interpret the output and visualize the results with an error bar chart. The file Census.sav, a PASW Statistics data file from a survey done on the general adult population. Questions were included about various attitudes and demographic characteristics. 1. We want to see whether men and women differ in their mean socioeconomic index (sei) and their age when their first child was born (agekdbrn). First, use the Explore procedure to view the distributions of these two variables by gender. Are they similar or different? Do you see any problems with doing a t test? 2. Now do a t test for each variable, by gender. Is the homogeneity of variance assumption met, or not? What do you conclude about mean differences by gender? 3. Create an error bar chart for each variable by gender. Is the graph consistent with the result from the t test? 4. Now do the same analysis with the variable race, testing whether there are differences in sei and agekdbrn comparing whites to blacks. Although race has three categories, you can use only two categories in the t test. As before, first use the Explore procedure to view the distributions of these two variables by race? Are they similar or different? Do you see any problems with doing a t test? 5. Now do a t test for each variable, by white versus black. Is the homogeneity of variance assumption met, or not? What do you conclude about mean differences between whites and blacks? 6. Create an error bar chart for each variable by race. Is the graph consistent with the result from the t test? 7. For those with more timed: How could you display an error bar chart with only the categories of white and black, not other? There are at least two methods. 8.10 Learning Activity The overall goal of this learning activity is to use the Paired-Samples T Test. The SPSS customer satisfaction data file SPSS_CUST.SAV. This data file was collected from a random sample of SPSS customers asking about their satisfaction with the software, service, and other features, and some background information on the customer and their company. 1. One variable in the customer survey asked about agreement that SPSS products are a good value (gdvalue). A second question asked about agreement that SPSS offers high quality products (hiqualty). Use a paired-samples t test to see whether the means of these two questions differ (they are measured on a five-point scale). What do you conclude? 2. Then test whether there is a mean difference between agreement that SPSS products are easy to learn (easylrn) and SPSS products are easy to use (easyuse). What do you conclude? 3. Could we use a paired-sample t test to compare how long a customer has used SPSS products (usespss) and how frequently they use SPSS (freqspss)? Why or why not? 9.20 Learning Activity The overall goal of this learning activity is to use One-Way ANOVA with post hoc tests to explore the relationship between several variables. You will use the PASW Statistics data file Census.sav. The file Census.sav, a PASW Statistics data file from a survey done on the general adult population. Questions were included about various attitudes and demographic characteristics. 1. Investigate how the number of siblings (sibs) varies by highest degree (degree). Ask for appropriate statistics. 2. Is the assumption of homogeneity of variance met? Is the ANOVA test significant at the .01 level? 3. Do a post hoc analysis, if justified. Ask for both the Bonferroni and Scheffe tests? What do you conclude from these tests? Which education groups have different mean numbers of children? Are the Bonferroni and Scheffe tests consistent? 4. Create an error bar chart to display the mean differences for sibs by degree. Is the error bar chart a correct representation of which means are different? 5. Now do another analysis of political position (polviews) by degree. Repeat the same College of Doctoral Studies SPSS Access Instructions SPSS (Statistical Program for the Social Sciences) is a computer program that is the de-facto standard used by research institutions and universities for the completion of quantitative analysis. As a doctoral learner, knowledge of quantitative research techniques and the application of these methods as provided in the application software is a required doctoral competency. Doctoral learners are required to use SPSS during several courses to complete specific assignments. Doctoral learners may execute SPSS Base Module and Advanced Statistics in one of two ways. SPSS Installation on Learner's PC or MAC SPSS Base and Advanced Statistics Modules may be installed on a PC or MAC computer. The combined program is very large so please make sure you have at least 2 GB of available disk space on your computer. Once the program file is downloaded, you may access SPSS software to complete classroom assignments and perform quantitative analysis as related to your own research. Actual installation can be performed in less than five minutes after the file has been downloaded. However, the initial download may exceed 60 minutes if your Internet connection is relatively slow. In some instances when the download exceeds 60 minutes, the download may not complete. Should you experience issues when attempting to download the SPSS file, please access the SPSS Server (below). Please use the following links to obtain installation instructions and the program file: Instructions: How to install SPSS on your PC PC Download File - 32 bit PC Download File - 64 bit Instructions: How to install SPSS on your MAC MAC Download File All SPSS programs installed on learner computers employ a security activation key which is in effect for 12 months. Should you receive a message indicating your SPSS software is out of date or requires a new activation key, simply follow the PC Update or MAC Update instructions. The update is typically completed in less than five minutes. SPSS Server Access The SPSS Server provides a convenient alternative method to access SPSS Base and Advanced Statistics Program via the Internet. Instead of downloading the entire SPSS program onto your computer (which can exceed 60 minutes), you may access the SPSS program via the Internet by downloading a small activation file (in less than five minutes). Once the activation file is downloaded, you may access SPSS software from any location where you are connected to the Internet to complete classroom assignments and perform quantitative analysis as related to your own research. Please use the following link to obtain instructions on how access the SPSS Server. Instructions: How to access the SPSS Server Remember that when completing course assignments using the SPSS server, it is necessary to first download the SPSS data file (.SAV) prior to accessing the SPSS Server. Once the data file is download to your computer, you can OPEN the file directly from SPSS. Technical Support Should you encounter any technical issues when attempting to install SPSS on your computer or access the GCU SPSS Server, please contact GCU IT Technical Support at 877-428-8447. Hours of operation: Monday - Friday: 6 AM - Midnight; Saturday and Sunday: 7 AM - Midnight (AZ time). Should you require assistance using SPSS to perform analysis, please contact your GCU faculty member. 2015. Grand Canyon University. All Rights Reserved