DESCRIPTIVE STATISTICS LAB EMPLOYEE DATA SOLUTION

November 9, 2023

DESCRIPTIVE STATISTICS LAB EMPLOYEE DATA

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ID 53563633773

Type Essay

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Perfect Number of Pages to Order 5-10 Pages

Description/Paper Instructions

DESCRIPTIVE STATISTICS LAB EMPLOYEE DATA

OBJECTIVES:

Calculate Descriptive statistics for quantitative data in Excel
Sort data in Excel to calculate descriptive statistics for subsets of a population
Construct side-by-side boxplots to compare subsets of a population
Compare the statistics and interpret the boxplots to reach conclusions about the population

In this activity, we will be learning how to use Excel to create numerical and graphical summaries for a data set.

Stat 1400 Descriptive Statistics Activity

Descriptive Statistics on Excel

In our last activity, we analyzed the demographics of the workforce for a small manufacturing company. This week we will continue to analyze the salaries of the employees of this company.

To calculate the statistical summary for the salaries, click on the Data menu at the top of the screen

Select Data Analysis at the far right (if that function is not listed you will need to add it on—see instructions at the beginning of lab activity 1). Choose Descriptive Statistics from the drop-down menu.

Click on the box for Input Range and highlight the salaries of all employees. Click on the box before Summary Statistics then click on OK. The descriptive statistics will be formatted into a table that will be displayed on a new page of the worksheet.

The graphical user interface, and application Description automatically generated

Change the name on the table to Salaries – all employees. Click on the line between column A and column B and drag it to the right to make column A wide enough for the names of the statistics. Copy and paste the table below:

Click on the Sheet 1 tab at the bottom of the screen. Now click on column B (gender) to highlight it. Then click on Diagram Description automatically generated with medium confidence on the right side of the ribbon menu at the top of the screen when you are in the home screen and select Sort A to Z. Click on ‘Expand the selection’ then click on Sort. This will sort the rows listing the female records first followed by the male records.

Click on Data on the ribbon menu at the top of the screen then click on Data Analysis at the far right. Choose Descriptive Statistics from the drop-down menu.

Click on the box for Input Range and highlight the salaries of all the female employees. Click on the box before Summary statistics then click on OK. The descriptive statistics will be formatted into a table that will be displayed on a new page of the worksheet. Make the first column wider and change the name of the table to ‘Female Salaries’. Copy and paste the table here:

Calculate the descriptive statistics for the male salaries following the same steps, but this time highlight all the male salaries for the input range. Edit the table in the same way as before. Copy and paste the table here:

Use the tables to answer the following questions:

What is the typical salary for an employee of this company? Remember the measures of center (mean or median) give the typical value of a data variable.
What is the relationship between the mean and the median of the salaries of all employees? (Circle answer)

MEAN > MEDIAN MEAN = MEDIAN MEAN < MEDIAN

What does this tell us about the shape of the histogram for the salaries of all employees? (You made this histogram in lab activity 1.)

Now compare the mean and median of the female employees to the mean and median of the male employees. Who earns more money at this company – males or females? Justify your choice using the statistics you compared.
Now compare the standard deviation of the female employees to the standard deviation of the male employees. Whose salaries are more consistent – males or females? Justify your choice using the statistics you compared.

Boxplot

Type ‘Female Salaries’ in cell G1. Highlight the female salaries. Select Copy from the ribbon menu at the top of the screen. Paste the female salaries in column G starting at cell 2.

Type ‘Male Salaries’ in cell H1. Highlight the male salaries. Select Copy from the ribbon menu at the top of the screen. Paste the male salaries in column H starting at cell 2.

Now highlight the female salaries and male salaries in columns G and H including the names of the columns. Click Insert on the menu at the top of the screen. Click on the All Charts tab and select Box and Whisker. Click on OK. Give the graph an appropriate title.

Copy and paste the graph below.

Use the graph to answer the following questions.

How do the boxplots show the relationship between the medians you compared in question 3?
How do the boxplots show the relationship between the standard deviations you compared in question 4?
What else do the boxplots reveal that the descriptive statistics did not reveal?

DESCRIPTIVE STATISTICS LAB EMPLOYEE DATA SOLUTION

RUBRIC

QUALITY OF RESPONSE	NO RESPONSE	POOR / UNSATISFACTORY	SATISFACTORY	GOOD	EXCELLENT
Content (worth a maximum of 50% of the total points)	Zero points: Student failed to submit the final paper.	20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking.	30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking.	40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete.	50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing.
Use of Sources (worth a maximum of 20% of the total points).	Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper.	5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6^th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper.	10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6^th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources.	15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6^th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources.	20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6^th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment.
Grammar (worth maximum of 20% of total points)	Zero points: Student failed to submit the final paper.	5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors	10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors	15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage.	20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free.
Structure of the Paper (worth 10% of total points)	Zero points: Student failed to submit the final paper.	3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6^th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6^th edition requirements whatsoever.	5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6^th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper	7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment.	10 points: Student provides a high-caliber, formatted paper. This includes an APA 6^th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper.

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