+1 (315) 557-6473 

Enhancing Workplace Well-being and Productivity through Statistical Analysis of Employee Satisfaction at Nasee Inc.

In today's highly competitive business landscape, understanding and fostering employee satisfaction is not just a noble endeavor but a strategic necessity. Employee well-being and contentment are intricately linked to productivity, retention, and the overall success of an organization. Nasee Inc., a forward-thinking company, recognizes the pivotal role that employee satisfaction plays in achieving its goals. This comprehensive analysis delves into the three fundamental dimensions of job satisfaction - work, pay, and promotion opportunities - to uncover the areas where Nasee Inc. can make targeted improvements. By doing so, Nasee Inc. is not only investing in its workforce's happiness but also in its own long-term prosperity.

Problem Description

In this Statistical Analysis Homework, we are tasked with analyzing employee satisfaction at Nasee Inc. by examining three key job satisfaction aspects: employees' work (WORK), employees' pay (PAY), and the opportunity for promotion (PROMO). The objective is to identify areas where Nasee Inc. can make improvements to enhance employee satisfaction. We will use data analysis techniques to understand the variations within these aspects and how they contribute to overall employee satisfaction.

The dataset provided contains information on three job categories: Job Type (Managerial, Supervisory, Clerical, and Technical), Education Level (Bachelor's and Master's Degree, College Level, and High School Diploma), and Location (Loc_A, Loc_B, and Loc_C).


General Introduction

By analyzing the three job satisfaction aspects: employee's work (WORK), employee pay (PAY), and the employees’ opportunity for promotion, we will get insight into the areas that Nasee Inc. needs to improve in order to gain maximum input from their employees. The measure of variabilities within the employees’ aspects is helpful in understanding how the aspects can either increase or decrease the overall satisfaction of the employees. Categorical change in satisfaction can also be measured using the measure of variability.

From the dataset, there are three job categories to be analyzed. The first category is the Job type. This can be either: Managerial, Supervisory, Clerical, or Technical. The second category is the Education level attained and this is divided into: Bachelor and Master’s Degrees (BAMA), College level, and the High School diploma (HSDIP). The last job category is the location. We have three locations labeled Loc_A, Loc_B, and Loc_C.

A Box and Jenkins plot will be used to show the descriptive statistics like spread, median, lower and upper quartile, and outliers. In Section III we will compare the various categories. We will analyze the data by categorizing the observation into;

  1. Job Type
  2. Education Level
  3. Location

Data Analysis

SECTION I: General Analysis

For Nasee Inc. to gain the maximum value of output from their employees, there is a need to improve the pay and promotion opportunities, especially for college employees and High school Diploma categories. By using the Box and Jenkins plot, we realize that the satisfaction rate for PAY was highly spread with the lowest and highest value being 23 and 96 respectively. Also on PAY, the median value was lower than the average indicating a positive skewness. The plot is similar to that of Promotion opportunity except that in promotion opportunity, the median is slightly higher than the mean indicating a negative skewness.

The Box and Jenkins plot is comparatively short for the WORK satisfaction rate indicating that the overall employees have a higher level of agreement when it comes to WORK satisfaction. Figure 1 below indicates the Box and Jenkins plot showing the distribution of various satisfaction aspects in relation to various categories.

Overall Box and Jenkins Plot

Figure 1: An Overall Box and Jenkins plot

We can then analyze the descriptive statistics table to translate the result above in a tabular form for the three aspects. The table will also help us to determine the specific values of mean, standard deviation, maximum, and minimum. Table 1 below shows that the mean for WORK satisfaction was highest with a value of 71.73529 followed by PROMO with 67.3825 and 62.48039 for PAY.

Variable Obs Mean Std.Dev. Min Max
WORK 102 71.73529 7.303772 56 86
PAY 102 62.48039 16.39713 23 96
PROMO 102 67.38235 11.52874 42 91

Table 1: Overall Descriptive Statistics

Comparing Mean

We can use the bar graph to compare the overall mean satisfaction of the employees based on the three aspects. The bar graphs below confirm that WORK had the highest satisfaction average. Most employees were happy and satisfied with their WORK characteristics. There is therefore a need to improve the PAY and PROMO in order to get a higher value of overall satisfaction.

Mean of The Job Charecteristics

Figure 2: Overall Bar Graph to compare the Mean of the job characteristics

SECTION II: Measure of Variability of Employee Satisfaction

In order to help Nasee improve employee satisfaction, we analyze how spread the three aspects are. The spread can be analyzed using various methods including scatterplots, Box and Jenkins plots, and calculation of the interquartile range. From the Box and Jenkins in Figure 1 above, there was a higher spread in PAY satisfaction rating and the PROMO.

SECTION III: Analyzing Various Categories

Job Type

The summary statistic comparison of various Job types is shown in Table 2 – Table 5 below

Variable Obs Mean Std.Dev. Min Max
WORK 22 69.09091 6.920701 60 82
PAY 22 57.77273 14.64153 29 86
PROMO 22 63.40909 10.83934 47 83

Table 2: Summary of Satisfaction effect for Clerical jobs

Variable Obs Mean Std.Dev. Min Max
WORK 23 72.34783 7.333663 59 84
PAY 23 61.08696 12.47511 40 91
PROMO 23 68.65217 11.05609 48 83

Table 3: Summary of Satisfaction effect for Managerial jobs

Variable Obs Mean Std.Dev. Min Max
WORK 17 77 7.331439 67 86
PAY 17 76 18.49324 40 96
PROMO 17 75.47059 11.12496 56 91

Table 4: Summary of Satisfaction effect for Supervisory jobs

Variable Obs Mean Std.Dev. Min Max
WORK 40 70.6 6.511528 56 82
PAY 40 60.125 15.92693 23 92
PROMO 40 65.4 10.90001 42 91

Table 5: Summary of Satisfaction effect for technical jobs

Supervisory job type had the highest average satisfaction in all three aspects (WORK, PAY, and PROMO). We also realize that the mean for work was lowest for clerical job type. There was a very low satisfaction average for PAY, WORK, and PROMO satisfaction for the clerical job groups. The clerical group seems to be the unhappiest group and there is a need for the Nasee Inc. team to consider its improvement in PAY to improve its satisfaction. A clear graph showing the various differences for the average job groups is shown in Figure 3 below.

Bar Graphs Showing Difference in MEANS

Figure 3: Bar Graphs showing the difference in means for various job groups

We can also display the spread using Box and Jenkins plots. From the Boxplot below, the highest range was seen in the PAY satisfaction for the technical group. The highest in this category is 92 and the lowest is 23. The highest spread is given by the PAY for the supervisory job group displayed by the highest standard deviation. We can also confirm that there was generally a lower spread in all four job groups for WORK satisfaction indicating agreement in the WORK satisfaction by all participants. The Box plot is shown in the figure below.

Box Plot

Figure 4: Box plot categorized by the job groups.

Educational Level

The educational Levels attained are categorized into three; High School Diploma (HSDIP), college level, and Bachelor's or master's Degree. The distribution of the sample size of the three categories is shown in Table 6 below.

Education Level   
Count/Sample Size   
High School Diploma (HSDIP)   
College Level   
Bachelors or Masters Degree   

Table 6: Counts of the various Education levels

The summary statistic tables below show the descriptive statistics of the three education levels attained.

Variable Obs Mean Std.Dev. Min Max
WORK 39 77.58974 5.295072 60 86
PAY 39 78.35897 10.00128 60 96
PROMO 39 77.58974 7.070018 56 91

Table 7: Summary of Satisfaction Effect for Bachelors or Master’s Degree (BAMA)

Variable Obs Mean Std.Dev. Min Max
WORK 40 68.525 5.643183 56 81
PAY 40 55.2 7.743318 40 76
PROMO 40 61.85 9.110574 47 81

Table 8: Summary of Satisfaction effect for college

Variable Obs Mean Std.Dev. Min Max
WORK 23 67.3913 6.387055 56 79
PAY 23 48.21739 14.11626 23 90
PROMO 23 59.69565 8.63626 42 73

Table 9: Summary of Satisfaction Effect of High School Diploma (HSDIP)

From the tables, those who have attained a Bachelor's or master’s degree seem happy and highly satisfied with all three work characteristics. However, there was a wider spread in the PAY satisfaction rate compared to the other satisfaction aspects for the Bachelor's or Master’s attained. The employees who attained college as their highest education level, had almost equal satisfaction perception in all the aspects as shown by the lesser values of standard deviation. However, the PAY satisfaction average was lower compared to other satisfaction aspects.

Those who attained a high school diploma had a generally lower satisfaction rate in all aspects. In spite of the lower satisfaction rate in all aspects, there was a notably very lower rate in PAY satisfaction with an average of 48.2178 and a standard deviation of 14.11626 indicating a higher spread. A Box and Jenkins plot below shows the spread of the three groups and the three aspects.

Box Plot Categorized by Education Level

Figure 5: Box plot categorized by education level attained.


The data was then categorized into the three locations; Location A, Location B, and Location C. The sample sizes of Location A, Location B, and Location C are 44, 32, and 26 respectively. The average rate of satisfaction was almost similar for the three groups with the lowest having 70.30769 and the highest at 73.54545. The spread was also lower as shown by a smaller sample variance. There was a lower satisfaction rate for employees in Locations B and C. There was notably a higher spread of pay satisfaction in all three location groups. The promotion satisfaction was average for all the groups with a high spread. The tables described above are shown.

Variable Obs Mean Std.Dev. Min Max
WORK 44 73.54545 6.979887 60 86
PAY 44 67.90909 15.88449 38 94
PROMO 44 70.72727 11.6925 47 91

Table 10: Summary of Satisfaction for Employees in Location A

Variable Obs Mean Std.Dev. Min Max
WORK 32 70.40625 7.024654 59 85
PAY 32 58.03125 16.37757 29 96
PROMO 32 64.71875 10.0426 48 88

Table 11: Summary of Satisfaction for Employees in Location B

Variable Obs Mean Std.Dev. Min Max
WORK 26 70.30769 7.770556 56 85
PAY 26 58.76923 15.10313 23 92
PROMO 26 65 11.91973 42 81

Table 12: Summary of Satisfaction for Employees in Location C

Bar Graph for Mean Satisfaction

Figure 6: Bar graph for mean satisfaction categorized by Location

From the histogram above, there was a difference in mean PAY and mean of PROMO for Location A from Location B and Location C. However, there was a similarity in the mean of WORK for all three locations.


There can be general improvement in employee satisfaction if a few actions are taken. There is a need to provide an increase in PAY and opportunities for promotion for the employees with High school Diplomas, college degrees, Location B and Location C. Doing so will satisfy these employees more, making them feel valuable, showing them that even though they do not have a BAMA degree, they still get rewarded for their hard work and commitment in the company. There is no greater effect of employees’ satisfaction on WORK despite the location. However, Location has an impact on satisfaction for PAY and satisfaction for the opportunity of Promotion.