Question Description
I’m working on a statistics question and need a sample draft to help me understand better.
The ping utility allows you to determine the amount of time required for a packet of information to traverse a network between your computer and another computer.
Utilize the ping utility to collect data on the round trip time for three different web sites.
Choose any web site and ping that site using the default ping settings. This will return four measurements of the round trip time between that web site server and your computer. Record these four measurements, and repeat the process until you have twenty total measurements for the round trip time.
Repeat this process for two additional web sites.
Construct a set of box and whisker plots showing access times for each of the three web sites. In addition to providing the chart, include a brief description of what the box and whisker plots tell you. You should specifically describe what five measures are included on the chart and how each is determined.
Choose one of your web sites for additional analysis. Ping that site twenty additional times this time recording the average value given for the four trials rather than the values for each trial
Create a chart showing the mean, median, standard deviation, and variance for both the single trial values (from your first data collection) and for the averages (from your second data collection). In addition to providing the chart, include a brief description of what these four pieces of data tell you and how each is calculated.
Respond to the following questions about your charts and data analysis:
- Describe how the access times for the three different web sites compared. Discuss possible reasons for these differences.
- Compare the mean, median, standard deviation, and variance values for the single trial and four trial average data? Which values are similar for these two measures? Which values are different? Given that both measure round trip access time, why are some of the values different? Consider the Central Limit Theorem in your response.
- Ping is a very quick way to assess a network connection between two computers. You want to use it to set up an hourly test to determine whether or not you have a stable connection to a specific resource. Describe the data analysis and interpretation steps you would utilize to determine if the connection was stable. To think about these steps, imagine that you needed to script/program these steps so that the test ran automatically and notified you if there was an issue.
You should combine all aspects of this assignment including charts into a single, cohesive document for grading. Please also submit your Excel data files for review but ensure that all charts and necessary information are in your main document.
By Day 7
Submit your assignment in the online classroom.
Submission and Grading Information
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Grading Criteria
*check my info after and I will screenshot.
Unit 1: Introduction to Statistics
As a quality engineer intern at Plush Packet, Inc. (PPI), you will be in charge of making sure the company’s products meet stringent standards. Part of your assignment will be assisting software developers in assessing and making important decisions about a new product that must be ready for production in several months. Following PPI’s successful introduction of an educational online game, TechSphere, the company is hoping to follow up with another game with a slightly different theme. This new game, TechSpace, will involve more complicated graphics and advanced algorithms. PPI is aiming to design software that is fast, efficient, and as bug-free as possible. Your job will be to work with Fred Hatch, PPI’s Director of Software Development, to assess different portions of the program and determine the program’s reliability before it is released to consumers. Complex software packages are difficult to develop and bugs may crop up when least expected, but PPI has high hopes that you will be able to help put the software together and analyze test results to ensure that everything works as smoothly as possible.
Fred Hatch sent an e-mail to you that concerns the new game.
Prepare: Introduction to Statistics
To answer certain questions, organizations often must gather data from a range of people or objects that are related to those questions (e.g., all software developers, all students, all cans of soup, or all rotary engines). Obtaining data from every individual person or item in a group is often prohibitively expensive or time consuming. For example, the 2010 U.S. Census, which is a survey of all residents in the country, cost taxpayers over $11 billion and required hiring approximately 635,000 temporary workers—a tremendous task that would be difficult or impossible even for most large companies. To overcome resource constraints (such as a lack of money, time, or sufficient personnel), researchers often resort to sampling: selection of a smaller number of individuals (people or things) that is nonetheless representative of the larger population from which it was drawn. Depending on the situation, a sample could contain hundreds, thousands, or even more data values, however. To make sense of the data, measured for each variable, statisticians rely on descriptive statistics: a collection of numeric and graphical methods to organize, summarize, and present the data.
In this unit, you will cover basic statistical concepts, determine variable types, and learn to use a variety of numeric and graphical descriptive statistical methods.
Learning Outcomes
Upon successful completion of this unit, you will be able to:
- Calculate measures of central tendency and select the best one for a given data set
- Calculate and interpret measures of dispersion
- Construct and interpret statistical summary tables
- Utilize statistical techniques to monitor network
***Explore
You will use a variety of resources in this unit. The list below contains all of these resources. The Unit Schedule below outlines the individual resources you will use for each assignment. Be sure to scroll down the page to see all of the assigned resources for this unit
| Assignment: Analyzing Ping Trip Times | STAT 2
Articles: |
Khan Academy. (n.d.). Statistics and probability. Retrieved from https://www.khanacademy.org/math/statistics-probability |
Required Readings
Johnson, R., & Kuby, P. (2012). STAT 2 (2nd ed.). Boston, MA: Brooks/Cole Cengage Learning.
- Chapter 1, “Statistics”
Chapter 1 provides an overarching summary of the field of statistics, defining some crucial terms that you will encounter and use throughout the course, and it introduces concepts related to data collection and sampling.
STAT 2
- Chapter 2, “Descriptive Analysis and Presentation of Single-Variable Data”
In this chapter, you will learn how to display and analyze single-variable data sets using graphical techniques and basic descriptive statistics, including measures of central tendency, dispersion, and position.
STAT 2
- Chapter 3, “Descriptive Analysis and Presentation of Bivariate Data”
- Section 3.1, “Bivariate Data”
- Section 3.2, “Linear Correlation”
Here, you will learn about data sets that involve two variables and about the correlation coefficient, which quantifies the relationship between those two variables.
