Details of this Paper

Devry MATH221 week 2 Ilab




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 questions after the Code Sheet;and paste the Graphs from Minitab in the grey areas for question 1 through 3. Type;your answers to questions 4 through 11 where noted in the grey areas. When asked for explanations, please give;thorough, multi-sentence or paragraph length explanations. The completed iLab;Word Document with your responses to the questions will be the ONE and only;document submitted to the dropbox. When saving and submitting the document, you;are required to use the following format: Last Name_ First Name_Week2iLab.;Code Sheet;Do NOT answer these questions. The Code Sheet just;lists the variables name and the question used by the researchers on the survey;instrument that produced the data that are included in the Minitab data file.;This is just information. The first question for the lab is after the 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). In this same labels window, select the;tab- Slice Labels and click on all, Category name, Frequency, Percent, Draw a;line from label to slice and then 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.;What is seen;in the histogram created for the heights of students in this class;(include the shape)? Explain your answer.;What is seen;in the stem and leaf plot for the money variable (include the shape)?;Explain your answer.;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.;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.;Using the;empirical rule, 95% of female heights should be between what two values?;Either show work or explain how your answer was calculated.;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#60677 | Written in 18-Jul-2015

Price : $32