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CARTERJBTM8107-8 4 Assignment Cover Sheet Northcentral University

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    CARTERJBTM8107 - 8 4 1 NORTHCENTRAL UNIVERSITY ASSIGNMENT COVER SHEET CARTERJBTM8107 - 8 4 Student: THIS FORM MUST BE COMPLETELY FILLED IN Follow these procedures: If requested by your instructor, please include an assignment cover sheet. This will become the first page of your assignment. In addition, your assignment header should include your last name, first initial, course code, dash, and assignment number. This should be left justified, with the page number right justified. For example: DoeJXXX0000 - 1 1 Save a copy of your assignments: You may need to re - submit an assignment at your instructor’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. This includes 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 of the work, is considered plagiarism. This will result in an unsatisfactory grade for the work submitted or for the entire course. It may also result in academic dismissal from the University.

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    CARTERJBTM8107 - 8 4 2 BTM8107 - 8 Amy Vaughan Statistics 2 3 Explore Correlation and Regression

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    CARTERJBTM8107 - 8 4 3 Assignment 4 Jamie Carter BTM8107 - 8 Northcentral University Doctor Vaughan 09/06/2015

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    CARTERJBTM8107 - 8 4 4 Assignment 4 Part A . Dependent t test In this activity, we are interested in finding out whether participation in a creative writing course results in increased scores of a creativity assessment. For this part of the activity, you will be using 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 took the post - test. 1. Exploratory Data Analysis/Hypotheses a. Perform exploratory data analysis on CreativityPre and CreativityPost. Using SPSS, calculate the mean and standard deviation of these two variables. b. Construct an appropriate chart/graph that displays the relevant information for these two variables. c. Write the null and alternative hypotheses used to test the question above (e.g., whether participation in the course affects writing scores). The results of exploratory using SPSS for creativity pre test and post using SPSS software , the results are presented in the following table 1.

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    CARTERJBTM8107 - 8 4 5 Table 1: Statistics Creativity pre - test Creativity post - test N Valid 40 40 Missing 0 0 Mean 40.15 43.35 Median 38.00 44.00 Std. Deviation 8.304 9.598 Minimum 26 20 Maximum 56 59 The data analysis for part a of the research is shown in the table above. The mean of the creativity pre - test score s is 40.15 . The median score is 38.0 . The standard deviation was 8.304. T he mean of the post - test creativity scores was 35 . This test had a median score of 44 . The standard deviation was 9.598. When the same number of participants were analyzed, the post test scores were higher. b. Construct an appropriate chart/graph that displays the relevant information for these two variables. The histogram below shows the pre and post test scores. The following graphs show a skewing 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 post tests were in the 40 - 60 range showing a higher rate in post test than in pretest scores.

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    CARTERJBTM8107 - 8 4 6 Figure1: Histogram showing Creativity pre test score 60 40 20 Creativity pre-test 12 10 8 6 4 2 0 Frequency Mean =40.15 Std. Dev. =8.304 N =40 Creativity pre-test Figur2: Histogram showing Creativity post test score 60 40 20 Creativity post-test 8 6 4 2 0 Frequency Mean =43.35 Std. Dev. =9.598 N =40 Creativity post-test c. Write the null and alternative hypotheses used to test the question above (e.g., whether participation in the course affects writing scores). The goal of this research is to determine if the participants would score differently after taking a creative writing class. The sample data provided shows that the p ost test scores were higher than pre test scores.

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