CARTERJBTM8107-8 4 Assignment Cover Sheet Northcentral University

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CARTERJBTM8107-8 41NORTHCENTRAL UNIVERSITYASSIGNMENT COVER SHEETCARTERJBTM8107-8 4Student:THIS FORM MUST BE COMPLETELY FILLED INFollow these procedures:If requested by your instructor, please include an assignment coversheet. This will become the first page of your assignment. In addition, your assignment headershould include your last name, first initial, course code, dash, and assignment number. Thisshould be left justified, with the page number right justified. For example:DoeJXXX0000-11Save a copy of your assignments:You may need to re-submit an assignment at yourinstructor’s request. Make sure you save your files in accessible location.Academic integrity:All work submitted in each course must be your own original work. Thisincludes all assignments, exams, term papers, and other projects required by your instructor.Knowingly submitting another person’s work as your own, without properly citing the source ofthe work, is considered plagiarism. This will result in an unsatisfactory grade for the worksubmitted or for the entire course. It may also result in academic dismissal from the University.

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CARTERJBTM8107-8 42BTM8107-8Amy VaughanStatistics 23 Explore Correlation and Regression

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CARTERJBTM8107-8 43Assignment 4Jamie CarterBTM8107-8Northcentral UniversityDoctor Vaughan09/06/2015

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CARTERJBTM8107-8 44Assignment 4Part A. Dependent t testIn this activity, we are interested in finding out whether participation in a creative writing courseresults in increased scores of a creativity assessment. For this part of the activity, you will beusing the data file “Activity 4a.sav”. In this file, “Participant” is the numeric student identifier,“CreativityPre” contains creativity pre-test scores, and “CreativityPost” contains creativity post-test scores. A total of 40 students completed the pre-test, took the creativity course, and then tookthe post-test.1. Exploratory Data Analysis/Hypothesesa. Perform exploratory data analysis on CreativityPre and CreativityPost. Using SPSS, calculatethe mean and standard deviation of these two variables.b. Construct an appropriate chart/graph that displays the relevant information for these twovariables.c. Write the null and alternative hypotheses used to test the question above (e.g., whetherparticipation in the course affects writing scores).The results of exploratory using SPSS for creativity pre test and post using SPSSsoftware , the results are presented in the following table 1.

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CARTERJBTM8107-8 45Table 1:StatisticsCreativity pre-testCreativity post-testNValid4040Missing00Mean40.1543.35Median38.0044.00Std. Deviation8.3049.598Minimum2620Maximum5659The data analysis for part a of the research is shown in the table above.The meanof thecreativity pre-test scoresis40.15. Themedian scoreis38.0. The standard deviation was8.304.The meanof thepost-test creativityscores was35. This test had amedian scoreof44. Thestandard deviation was9.598.When the same number of participants were analyzed, the posttest scores were higher.b. Construct an appropriate chart/graph that displays the relevant information for these twovariables.The histogram below shows the pre and post test scores. The following graphs show askewing to the right where the pre-test is slightly skewed to the left. As seen by these graphs,there are only a few scores on pretest that falls in the 40-60 range. The average range on posttests were in the 40-60 range showing a higher rate in post test than in pretest scores.

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CARTERJBTM8107-8 46Figure1: Histogram showing Creativity pre test score604020Creativity pre-test121086420FrequencyMean =40.15Std. Dev. =8.304N =40Creativity pre-testFigur2: Histogram showing Creativity post test score604020Creativity post-test86420FrequencyMean =43.35Std. Dev. =9.598N =40Creativity post-testc. Write the null and alternative hypotheses used to test the question above (e.g., whetherparticipation in the course affects writing scores).The goal of this research is to determine if the participants would score differently after taking acreativewriting class. The sample data provided shows that the post test scores were higher thanpre test scores.

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