STAT 3001 Week 1 Project Soultions

Instructions:  To complete this project, you will need the following materials:

·         STATDISK User Manual (found in the classroom in DocSharing)

·         Access to the Internet to download the STATDISK program.

This assignment is worth a total of 60 points.

While arriving at the correct solution for a task or problem is important, the primary purpose of this assignments is for you to demonstrate that you understand the process of completing the task or problem by providing a clear explanation and showing the steps necessary to complete the task or solve the problem.

Guidelines:

·         You may place your answers directly into this document.  Use TAB to advance through the table below.

·         if the assignment asks you to perform a task, you should explain the steps for completing this task in enough detail so that someone else could do the task.  For example:  Let’s say the instructions are to “Make a Copy of Column1”.  You might type “Click COPY button, select Column 1, click COPY button on dialog. Click on Column 2. Press CTRL-V”

·         If the assignment asks a direct question, you should answer the question in a full sentence.  For example if the assignment asks “What type of data is this?  Why?”, you might answer “This data is categorical data because it could be used to divide the data into 3 categories:  SMALL MEDIUM LARGE.”

Before you begin this assignment, you will need to download and install STATDISK [Version 11] on your computer, using the instructions in the STATDISK User Manual.

Instructions

Answers & Explanations

1.      Open the STATDISK program, then open the data file SUGAR.   This file contains some measurements of the amount of sugar (in grams) found in one serving of chocolate cake. The measurements were taken at a school cafeteria over a two-week period.  [Hint: Use the Datasets menu, as instructed in the STATDISK User Manual.]  How many observations are there in the file?

2.      Make a copy of the data values listed in column 1.  Paste the data files into column 2. Re-name the title of column 2 to COPY. Explain the steps.

3.      Make another copy of the data values listed in column 1 and paste those into column 3.  Then sort only the data values in column 3.  Label the column SORT. What is the largest value in this dataset?

4.      Manually enter the following data values into column 4.  Type all of the data values into the one column in vertical fashion like the other data values are listed in the other columns.  Label this new column IQ.  Explain the steps.

5.      What are some of the problems that could occur when entering data values?

6.      Go to the Data menu then select Sample Transformations to add 100 to all of the data values in column 4 and then paste those values into column 5.  Now what is the value of the data item in the 10^th row?

7.      Would the grams of sugar data in column 1 be considered a sample or a population?  Why?

[Hint:  Think hard about the difference between a sample and population.]

8.      Would you consider the sugar variable to be qualitative or quantitative? Why?

9.      Would you consider the sugar variable to be discrete, continuous or neither? Why?

10.  What is the level of measurement for the sugar variable? Why?.

11.  Save all of the data in columns 1-5 using the file name W1PROJECT.  Be certain to add column labels to the data set.  Explain the steps.

12.  Use the COPY function in the Sample Editor to copy the data values (all columns with labels) and paste them into this Word file immediately below these directions.

Data from Sample Editor goes here:

Submit your final draft to the Assignment 2 Turnitin – Week 1 area of your course. Please use the naming convention "WK1Assgn2+first initial+last name" as the Submission Title.