Lab#1 - Graphs - Edubirdie

University:
Glendale Community College
Course:
MAT155 | College Algebra/Functions with Review
Academic year:

2024
Views:

431

Pages:

5
Author:

Myles Beasley

Lab#1 - Graphs MTH 155-Elementary Statistics Name(s): Myles, Hannah Goal: In this lab, you will learn how to construct graphs in StatCrunch. Instructions: You will use the attached file containing data collected from my statistics class in the spring of 2018. Click on MyLab and Mastering tab in Canvas. Then click on StatCrunch tab and click “visit the StatCrunch website” link. I recommend using Chrome as your browser. Please type up your answers in this document and include your graphs. Your answers should be included underneath the questions. If you work in groups, submit only one document and make sure to include the names of all group members (maximum number of people in a group = 3) Under My Data, there is an option for loading a file from your local computer into StatCrunch. Choose Select a file on my computer and upload the attached file (Click “Load File” to upload the file to StatCrunch). 1) [1 pt] Construct a pie chart for the variable “Favorite Season” (Graph/Pie Chart/with data). Provide your graph and answer the following questions: (to paste your graph in your word document, right click on the graph window, select “copy,” then right click into a Word document you are going to submit, and choose under paste options “picture”.) a) Which season is most favorable by students in this class? fall b) Which season is least favorable by students in this class?winter and spring 2) [1 pt] Construct a bar graph for the variable “Expected Grade.” Make sure to label the axes and provide a title. Interpret the graph. (Graph/Bar Plot/With Data. Under “type” Choose “percent”) Every student should pass stats class. Over 90% of students will pass with above a C. 3) [2 pts] Construct a multiple bar graph for the variable “Attitude toward Math” grouped by “Sex.” Provide a title, label the axes, and explain what you see. (Graph/Bar Plot/grouped by “Sex”) the men were more moderate in their voting Now let’s switch to quantitative variables. 4) [2 pts] Construct a dotplot for the variable “Age.” What do you see? Is the distribution normal, uniform, skewed right, skewed left, or neither? (Graph/Dotplot, label the axes) a lot more people under 20, skewed left. 5) [2 pts] Construct a histogram for the variable “Height.” Set the starting point to 50 and select the class width of 2. Interpret your graph. (Graph/histogram) height between 65 and 70 inches is the most common height in the statistics class. 6) [2 pts] Construct a stem and leaf diagram for the variable “Height.” Interpret the graph. Which graph do you think is more appropriate for these data: a histogram or stem and leaf diagram? Explain. Stem and leaf is more appropriate for height in inches because it allows for more precise representation. Variable: Height in inches (round to the nearest inch) Decimal point is 1 digit(s) to the right of the colon. Leaf unit = 1 5:8 6 : 002222344 6 : 56666777899999 7 : 0134 7:8