Word File Edit View Insert Format Tools Table Window Help Mon Apr 12 12:10 AM ООО AutoSave OFF 合9 Lab1 - Compatibility M

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Word File Edit View Insert Format Tools Table Window Help Mon Apr 12 12:10 AM ООО AutoSave OFF 合9 Lab1 - Compatibility Mode Table Design Layout Tell me Home Insert Draw Design Layout References Mailings Review View Share Comments Indent V "Hv ! Line Numbers Spacing C I Before: C * = After: m 2 Diver O pt ago Margins Orientation Size Columns Breaksbe Hyphenation + Left: 0" = Right: 0" Position Wrap Text Selection Align Pane Bring Send Forward Backward Group Rotate O pt Math 10 - Lab 1 - Creating Graphs from Data 52 Open MINITAB file rateMP.mpj from the website. This data represents information from a sample of 700 instructors from the popular website ratemyprofessors.com. All instructors are sampled from the Foothill-De Anza Community College District. Here is a description of the data: College: Smiley: Positive Neutral Negative Foothill or De Anza Photo: Instructor has a photo Hot: Instructor has a chili pepper Gender: Male or Female (Reported Gender) Dept: Academic Department (example - Mathematics) Division Academic Division (example - PSME) Num Number of Ratings for that faculty member Overall Average Overall Quality Rating (1-5 scale, lowest to highest) Easiness Average Easiness Rating (1-5 scale, hardest to easiest) ler We are going to use Minitab to make some dot plots for this data. Specifically we are going to look at Average Overall Quality Rating and try to make some comparisons of groups. First, let's ask some questions about this data. 1. Identify the quantitative variables. 2 Identify the categorical variables. 3. An observational study is based on data that already exist. An experiment is data created by design by researchers who can control one more variables. Is this an observational study or an experiment? Explain. 4. In your opinion, what is the population (all the data from which this sample was taken)? 5. In your opinion, what is the sample? 6. Do you think this is a representative (not biased) sample of all instructors at Foothill-De Anza? Explain. Now we are going to make some dot plots of the Average Overall Quality Rating which can be found under the GRAPHS menu command in MINTAB 7 Make a dot plot of all instructors' Average Overall Quality Rating. (Simple Dot Plot). Paste the graph here and analyze the dot plot. (describe the data's shape, center, spread and unusual features) 8. Make a dot plot of all instructors' Average Overall Quality Rating by gender. (With Groups Dot Plot). Paste the graph here. Do you see any difference in overall quality between males and females? 9. Make a dot plot of all instructors' Average Overall Quality Rating by college. (With Groups Dot Plot). Paste the graph here. Do you see any difference in overall quality between Foothill and De Anza instructors? 10. Make a dot plot of all instructors' Average Overall Quality Rating by hotness. (With Groups Dot Plot). Paste the graph here. Do you see any difference in overall quality between "Hot" and "Not Hot" instructors? To graph categorical data, you can use pie charts or bar charts, both which can be found on the GRAPHS menu command in MINTAB 11. Make a pie chart of the categorical variable college and interpret the graph. 12. Make a simple bar chart of the categorical variable gender and interpret the graph 13. Make a clustered bar chart of the variables hot and smiley. Compare the smiley rating between "hot" and "not hot" instructo AtoEl yyyy Page 1 of 1 482 words * English (United States) O Focus E - + 161%