EPSY3924_Exam1

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EPsy 3264: Basic and Applied Statistics Exam 01 11 pts. Copyright EPSY 3264, 2021 1 Learning to Use TinkerPlots TM Preparation Prior to completing this assignment, watch the following TinkerPlots TM video: ● TinkerPlots Basics This video can be accessed from TinkerPlots TM website (http://www.tinkerplots.com; select Movies on the left-side). The information in the movie will help you learn how to use many of the features of TinkerPlots TM that we will be using in the course. Use what you learn to complete this assignment. Part 1: Marvel Cinematic Universe: Runtime Open the data file Use TinkerPlots TM to open the mcu.tp3 1 (this data set is located on the Canvas site in the Data Sets folder) file (within TinkerPlots TM select File > Open... ). These data include information about Marvel Cinematic Universe Titles (MCU). Create a Dot plot ● Create a dot plot of the movie runtime (in minutes) by dragging the runtime attribute to the plot’s x-axis. ● Fully separate the cases. There shouldn’t be any bin lines in the plot. Remember bin lines are the vertical lines separating the data into bins corresponding to ranges of numbers. ● Vertically stack the cases in the plot so they are organized. If your points are floating like the ones in the plot below - it is not vertically stacked. 1 Data from OpenIntro datasets: https://www.openintro.org/data/index.php?data=mcu_films Copyright EPSY 3264, 2021 2 For example, the plot on the left above is vertically stacked, but not fully separated. The plot on the right is fully separated, but not vertically stacked. 1. Copy and paste your final (fully separated and vertically stacked) plot into your word-

processed document. Add to Your Plot 2. Next we will add the average of the to your plot. ○ Highlight the plot by clicking on it, and select the Averages (Mean) button in the upper toolbar (the triangle). This should add a triangle to your plot underneath the mean value. ○ With the plot still highlighted, choose the Averages Options in the upper toolbar (the upside-down triangle next to Averages) and select Show Numeric Value(s). This should display the numeric value of the mean in the plot. ○ Copy and paste this plot (with the mean and the numeric value of the mean displayed) into your word-processed document. 3. In the plot, click on a case that is near the mean runtime. Identify the MCU title you clicked on and its runtime. NOTE: The runtime variable was recorded as a number. This is called quantitative data. When we record variables as a number, our dotplots of that variable will not have any bin lines dividing the data. However, we might collect data that isn’t a number, but instead is a category. This is called categorical data. For example, season is an example of a categorical variable (recorded as EPsy 3264: Basic and Applied Statistics Exam 01 11 pts. Copyright EPSY 3264, 2021 3 summer/not summer). When we create a dot plot of categorical data, it will have a bin for each category when fully separated. 4. There are different storylines, called "phases", in the Marvel Cinematic Universe. Create a dot plot of the phase values by dragging the phase attribute to the plot’s x-axis. Separate the

values so that the cases are separated into the four phases (there will be a vertical line separating them). Also vertically stack them so they are organized. Display the counts (Counts N) and percentages (Counts %) for each phase on the existing dot plot. Copy and paste this plot into your word-processed document. Part 2: Marvel Cinematic Universe: Runtime by Format ● Create a new dot plot of the runtime variable (place this variable on the x-axis). Fully separate the values (no bin lines) and vertically stack them so they are organized. ● Add the format variable to the y-axis. This will separate the runtimes for movies and tv shows. ● Add a divider to the existing dot plot by highlighting the plot and clicking the Divider button in the toolbar. This will divide the plot into three distinct parts: a shaded middle part and two unshaded ends. ● Once the divider has been added to the plot, display percentages on the plot. Percentages should be displayed for all three parts of the divided plot. 5. Move the endpoints of the divider so that the shaded part covers the area where most of the data points fall for each format. Copy and paste this plot, with the divider and percentages, into your word-processed document. (2pts.) 6. Use the endpoints of the divider to complete this statement: Most MCU movies are between ___ and ___ minutes long. 7. Based on the plot, comment on potential differences in runtimes between tv shows and movies. How do they compare? 8. Identify the movie that has the longest runtime. 9. Add the mean of the runtimes (triangle) and the numerical value of the mean to the plot. Find the runtime for Ms. Marvel, and add a vertical reference line at that value. Change the position of the vertical reference line by double clicking on the red square at the top of the vertical reference line, and then type in the value where you would like the line to be EPsy 3264: Basic and Applied Statistics Exam 01 11 pts.

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Copyright EPSY 3264, 2021 4 located. Copy and paste this plot (with the displayed means and the vertical reference line) into your typed document. 10. Based on the plot, how does the runtime for Ms. Marvel compare with the other TV shows? Explain using evidence from your plot.

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