MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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MATH 040- HOMEWORK #1 De to slow Due Thursday, September 7th by 12:00PM EST on Canvas laphozoteo L Name: Karina Reilly 1. A survey collected the following information from a sample of 450 college students: Freshman, Sophomore, Junior, or Senior. с CI Cho 2 3 Male, Female e Number of exercise hours per week. Left-handed or Right-handed our en oo 88079 od 10130 Jeni Year Gender Exercise 4 Hand 5 Alcohol 6 Credits sur ind 7 Cheat 8 GPA This HW covers the material from Lectures #2 and #3 gvail do 93 8560 (a) What are the 'individuals' (or 'units') in this dataset? college students (b) How many variables are in this dataset? 8 Jusque 2. Consider the following pictograms. For each one, circle whether it is 'Appropriate' or 'Not appropriate' in the way it was drawn and briefly explain. (c) What is the sample size of the dataset? = 450 umber (d) To the left of each variable's name above, write the type of the variable C - categorial or Q - quantitative. $4.1 BILLION IN SALES Number of alcoholic beverages consumed in a typical week Number of credits the student is registered for that semester Would you tell instructor if you saw somebody cheating on an exam? (Yes, No). Student's GPA 鹽味 $4.3 BILLION IN SALES Hat dow $41 BILLION IN SALES $8 BILLION IN SALES upial U 10 BILLIONS OF DOLLARS GDP OF AFGHANISTAN $21 BILLION $11.3 BILLION IN SALES $9.4 BILLION IN SALES $8.2 BILLION IN SALES WENDY'S BURGER KING Appropriate/Not appropriate 1900 19791 stogoiss b Follows area rule 40 35 30 25 20 15 10 5 What co-worker behaviors annoy you the most? 1 Sloppy work Gossiping or engaging in office politics Missing deadlines Being perpetually late Presenting others' ideas as one's own didi timidus illw 5% olg 23% 18% 12% Appropriate Not appropriate doad) Follows area rule POS 41% or rt 63.03
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Transcribed Image Text:MATH 040- HOMEWORK #1 De to slow Due Thursday, September 7th by 12:00PM EST on Canvas laphozoteo L Name: Karina Reilly 1. A survey collected the following information from a sample of 450 college students: Freshman, Sophomore, Junior, or Senior. с CI Cho 2 3 Male, Female e Number of exercise hours per week. Left-handed or Right-handed our en oo 88079 od 10130 Jeni Year Gender Exercise 4 Hand 5 Alcohol 6 Credits sur ind 7 Cheat 8 GPA This HW covers the material from Lectures #2 and #3 gvail do 93 8560 (a) What are the 'individuals' (or 'units') in this dataset? college students (b) How many variables are in this dataset? 8 Jusque 2. Consider the following pictograms. For each one, circle whether it is 'Appropriate' or 'Not appropriate' in the way it was drawn and briefly explain. (c) What is the sample size of the dataset? = 450 umber (d) To the left of each variable's name above, write the type of the variable C - categorial or Q - quantitative. $4.1 BILLION IN SALES Number of alcoholic beverages consumed in a typical week Number of credits the student is registered for that semester Would you tell instructor if you saw somebody cheating on an exam? (Yes, No). Student's GPA 鹽味 $4.3 BILLION IN SALES Hat dow $41 BILLION IN SALES $8 BILLION IN SALES upial U 10 BILLIONS OF DOLLARS GDP OF AFGHANISTAN $21 BILLION $11.3 BILLION IN SALES $9.4 BILLION IN SALES $8.2 BILLION IN SALES WENDY'S BURGER KING Appropriate/Not appropriate 1900 19791 stogoiss b Follows area rule 40 35 30 25 20 15 10 5 What co-worker behaviors annoy you the most? 1 Sloppy work Gossiping or engaging in office politics Missing deadlines Being perpetually late Presenting others' ideas as one's own didi timidus illw 5% olg 23% 18% 12% Appropriate Not appropriate doad) Follows area rule POS 41% or rt 63.03
oclete eni rett 3. The Minitab data health-insurance.mwx that is linked on Canvas contains the data collected from a random sample of 3000 employed individuals from the central Atlantic region of the U.S.. For each subject, the data file contains the following two categorical variables: health.ins Education: Briefly Summarize your findings regarding the education level not an individual has health insuran 1 are you XXTL-1 Vir Does the subject have health insurance (Yes, No) 1.< HS Grad 2. HS Grad 3. Some College 4. College Grad 5. Advanced Degree Open the data file in Minitab. dor (a) create a pie-chart of the variable health. ins in Minitab: POMPE • Choose Graph > Pie Chart. Make sure 'Counts of Unique Values' is selected and click ok. • In the dialog box, make sure the cursor is planted under 'Categorical variables’ and then double-click on health. ins on the left so that it appears under 'Categorical variables'. • Click 'Options' and under 'Label Slices With" check all three boxes. . Click OK twice. Briefly summarize your findings on the top of the next page. One sentence is sufficient. No need to include the graph with the assignment. Joar dis (b) It would be interesting to examine the distribution of the variable health.ins across the education level categories. In other words, it would be interesting to explore the effect of education level on whether or not an individual has health insurance. An informative display for exploring the distribution of health. ins across the edu- cation categories is a stacked bar-graph. . Choose Graph > Bar chart > Counts of Unique Values. Choose 'Multiple Variables' and click Ok. . Under Categorical Variables, enter the variables education and health. ins (You MUST enter the variables in the order listed above; Education first). . Make sure that 'Last Variable Stacked' is chosen and click Ok. Note that the graph is in counts. To change it to percentages (so that we can more clearly see what the data suggest): . At the top right of the graph click on the downarrow and choose Graph Options. ● In the 'Options' menu that appears on the right, scroll down and click on Scales. Check 'Percent' and choose 'Within categories of the first level (outermost)'. Your graph is now ready! Include the plot at the end of your homework, and label it '3(b)' . Click on the small black downarrow not the top right of the graph, choose 'Copy Graph'. • Paste the graph onto a document where you will include all the required Minitab output for this assignment. You will submit this document along with the rest of your work 2 e bar to g ntage 46.2 eas g ve h e #3, swer t im im e ma llowi 50 JI 4 H e YO
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Transcribed Image Text:oclete eni rett 3. The Minitab data health-insurance.mwx that is linked on Canvas contains the data collected from a random sample of 3000 employed individuals from the central Atlantic region of the U.S.. For each subject, the data file contains the following two categorical variables: health.ins Education: Briefly Summarize your findings regarding the education level not an individual has health insuran 1 are you XXTL-1 Vir Does the subject have health insurance (Yes, No) 1.< HS Grad 2. HS Grad 3. Some College 4. College Grad 5. Advanced Degree Open the data file in Minitab. dor (a) create a pie-chart of the variable health. ins in Minitab: POMPE • Choose Graph > Pie Chart. Make sure 'Counts of Unique Values' is selected and click ok. • In the dialog box, make sure the cursor is planted under 'Categorical variables’ and then double-click on health. ins on the left so that it appears under 'Categorical variables'. • Click 'Options' and under 'Label Slices With" check all three boxes. . Click OK twice. Briefly summarize your findings on the top of the next page. One sentence is sufficient. No need to include the graph with the assignment. Joar dis (b) It would be interesting to examine the distribution of the variable health.ins across the education level categories. In other words, it would be interesting to explore the effect of education level on whether or not an individual has health insurance. An informative display for exploring the distribution of health. ins across the edu- cation categories is a stacked bar-graph. . Choose Graph > Bar chart > Counts of Unique Values. Choose 'Multiple Variables' and click Ok. . Under Categorical Variables, enter the variables education and health. ins (You MUST enter the variables in the order listed above; Education first). . Make sure that 'Last Variable Stacked' is chosen and click Ok. Note that the graph is in counts. To change it to percentages (so that we can more clearly see what the data suggest): . At the top right of the graph click on the downarrow and choose Graph Options. ● In the 'Options' menu that appears on the right, scroll down and click on Scales. Check 'Percent' and choose 'Within categories of the first level (outermost)'. Your graph is now ready! Include the plot at the end of your homework, and label it '3(b)' . Click on the small black downarrow not the top right of the graph, choose 'Copy Graph'. • Paste the graph onto a document where you will include all the required Minitab output for this assignment. You will submit this document along with the rest of your work 2 e bar to g ntage 46.2 eas g ve h e #3, swer t im im e ma llowi 50 JI 4 H e YO
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The data is given in the example.
The total number of observations is 420.

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