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##### devry math 221 week 2 lab project

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Question;Statistics ? Lab Week 2;Name;Math221;Statistical Concepts;?;Using MINITAB;?;Graphics;?;Shapes of Distributions;?;Descriptive Statistics;?;Empirical Rule;Data in MINITAB;? MINITAB is a;powerful, yet user-friendly, data analysis software package. You can launch;MINITAB by finding the icon and double clicking on it. After a moment you will;see two windows, the Session Window in the top half of the screen and the;Worksheet or Data Window in the bottom half.;? Data have already;been formatted and entered into a MINITAB worksheet. Go to the eCollege Doc;sharing site to download this data file. The names of each variable from the;survey are in the first row of the Worksheet. This row has a background color;of gray to identify it as the variable names. All other rows of the MINITAB;Worksheet represent a certain students? answers to the survey questions.;Therefore, the rows are called observations and the columns are called;variables. Included with this lab, you will find a code sheet that identifies;the correspondence between the variable names and the survey questions.;? Complete the;answers below and paste the answers from MiniTab below each question. Type your answers to the questions where;noted. Therefore, your response to the;lab will be this ONE document submitted to the dropbox.;Code Sheet;Variable Name;Question;Drive;Question 1 ? How long does it take you to drive to the school on;average (to the nearest minute)?;State;Question 2 ? What state/country were you born?;Temp;Question 3 ? What is the temperature outside right now?;Rank;Question 4 ? Rank all of the courses you are currently taking. The;class you look most forward to taking will be ranked one, next two, and so;on. What is the rank assigned to this class?;Height;Question 5 ? What is your height to the nearest inch?;Shoe;Question 6 ? What is your shoe size?;Sleep;Question 7 ? How many hours did you sleep last night?;Gender;Question 8 ? What is your gender?;Race;Question 9 ? What is your race?;Car;Question 10 ? What color of car do you drive?;TV;Question 11 ? How long (on average) do you spend a day watching TV?;Money;Question 12 ? How much money do you have with you right now?;Coin;Question 13 ? Flip a coin 10 times. How many times did you get tails?;Die1;Question 14 ? Roll a six-sided die 10 times and record the results.;Die2;Die3;Die4;Die5;Die6;Die7;Die8;Die9;Die10;Creating Graphs;1.;Create a Pie Chart for the variable Car ? Pull up Graph > Pie Chart and click in the;categories variables box so that the list of variables will show up on the;left. Now double click on the variable;name ?Car? in the box at the left of the window. Include a title by clicking on;the ?Labels?? button and typing it in the correct text area (put your name in;as the title) and click OK. Click OK;again to create graph. Click on the;graph and use Ctrl+C to copy and come back here, click below this question and;use Ctrl+V to paste it in this Word document.;2. Create a;histogram for the variable Height ? Pull up Graph > Histograms and choose ?Simple?. Then set the graph variable to ?height?.;Include a title by clicking on the ?Labels?? button and typing it in the;correct text area (put your name in as the title) and click OK. Copy and paste the graph here.;3. Create a stem and;leaf chart for the variable Money ? Pull up Graph > Stem-and Leaf and set Variables: to ?Money?. Enter 10 for the Increment: and click OK.;The leaves of the stem-leaf plot will be;the one?s digits of the values in the ?Money? variable. Note: the first column of the stem-leaf plot;that you create is the count. The row;with the count in parentheses includes the median. The counts below the median cumulate from the;bottom of the plot.Copy and paste the graph here.;Calculating Descriptive;Statistics;4.;Calculate descriptive statistics for the variable;Height by Gender ? Pull up Stat >;Basic Statistics > Display Descriptive Statistics and set Variables: to Height. Check By variable: and enter Gender into this;text box. Click OK. Type the mean and the standard deviation for;both males and females in the space below this question.;Mean;Standard deviation;Females;Males;? Select File;Save Worksheet As to save the data set. You must either keep a copy of;this data or download it again off the web site for future labs.;Short Answer Writing;Assignment;All answers should be;complete sentences.;5.;What is the most common color of car for students;who participated in this survey? Explain how you arrived at your answer.;6. What is seen in;the histogram created for the heights of students in this class (include the;shape)? Explain your answer.;7. What is seen in;the stem and leaf plot for the money variable (include the shape)? Explain your;answer.;8. Compare the mean;for the heights of males and the mean for the heights of females in these data.;Compare the values and explain what can be concluded based on the numbers.;9. Compare the standard;deviation for the heights of males and the standard deviation for the heights;of females in the class. Compare the values and explain what can be concluded;based on the numbers.;10. Using the;empirical rule, 95% of female heights should be between what two values? Either;show work or explain how your answer was calculated.;11. Using the;empirical rule, 68% of male heights should be between what two values? Either;show work or explain how your answer was calculated.

Paper#61146 | Written in 18-Jul-2015

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