Sample Bstats 1 PDF

Title Sample Bstats 1
Author hoàng anh
Course Business Statistics
Institution Royal Melbourne Institute of Technology University Vietnam
Pages 12
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Summary

RMIT UNIVERSITY VIETNAM2019ASSIGNMENT COVER PAGECourse code ECONCourse name Business Statistic 1Campus Sai Gon South CampusSemester Semester 3 – 2019Assignment Assignment 1 – Case Study AnalysisTopic Tech for GoodVersion TechGoodLecturer Greeni MaheshwariStudentNguyen Tran Thao [email protected]...


Description

RMIT UNIVERSITY VIETNAM 2019

ASSIGNMENT COVER PAGE

Course code

ECON1193

Course name

Business Statistic 1

Campus

Sai Gon South Campus

Semester

Semester 3 – 2019

Assignment

Assignment 1 – Case Study Analysis

Topic

Tech for Good

Version

TechGood4

Lecturer

Greeni Maheshwari

Student

Nguyen Tran Thao Uyen S3804819 [email protected]

Class time

Thursday – 8:00 A.M

Class group

SG-G05

Word count

Part A: 889 words Part B: 536 words

Table of Contents PART A: Article Reading – Tech for Good............................2 PART B: Descriptive Statistics Analysis................................9 a) Analysis of 3 measurements:....................................................9 I.

Measurements of Central Tendency....................................................9

II. Measurements of Variations.................................................................9 III.

Box-and-Whisker Plot Analysis......................................................10

b) Two other numerical variables...............................................11 1. Active app users..................................................................................11 2. App retention.......................................................................................11

References.............................................................................12

1 Nguyen Tran Thao Uyen – s3804819

PART A: Article Reading – Tech for Good

2 Nguyen Tran Thao Uyen – s3804819

According to the MGI report (2019), the nature of technology has no specific good or bad effects on human or the economy. It depends on how technology is designed and applied for specific purpose, which will consequently generate positive or negative outcomes. In terms of economy, the application of advanced technology has both potential economic benefits and risks. The potential economic opportunities of technology application mentioned in this MGI report are growth in GDP, increased productivity and income opportunities. Meanwhile, wage gap and temporary unemployment risks are major negative economic implications of technology reported in this paper. However, it is also stated that technology adoption can tackle the difficulties of unemployment mentioned earlier. To begin with, one of the benefits that technology has on the economy is encouraging economic growth. Specifically, as reported in MGI paper, technological development has reduced working hours since 1800, which consequently led to growth in life expectancy and world GDP (figure 1). Moreover, one simulation conducted by the MGI suggests that AI adoption has the ability to raise as much as $13 trillion in the global GDP by 2030, and boost the GDP to grow 1% more annually (Bughin et al. 2019)

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Figure 1. Reproduced from Bughin et al. 2019. Figure 1 shows that alongside with the development of technology throughout the history, the GDP growth rate constantly increases. Until 2010 – the age of digitalization, AI and IoT, world’s GDP has experienced a significant increase by 23 times. Specifically, automation and networking in production in 1950 – 1960 fuelled the dramatic increase in GDP in the following periods. Secondly, raising productivity is another positive influence of technology, which is closely associated by growth in wage and employment (Figure 2). This positive change results in higher prosperity – to be more specific, improved productivity from application of technology raises people’s income, hence buying power of people grows, leading to increase in demand for more goods and services, which results in growth of demand for more labour. Figure 2. Reproduced from Bughin et al. 2019. Figure 2 illustrates an upward trend in the UK’s growth in productivity, which went hand-inhand with higher employment rate. This finding is derived from a research conducted by the MGI to study the effect of technology-driven productivity on employment in the UK from 1760 to 2016. Raising income and working opportunities in technological fields is one significant benefit of technology adoption. Digital business models can raise incomes through better technological innovation. Connectivity platforms such as eBay and Etsy allow people to earn additional income with lower costs than traditional retail channels. Moreover, digital platforms can be used by independent workers to earn income (figure 3). It is reported that online

talent

platforms

could

facilitate up to 60 million people find jobs that are more suitable for their skills or desires, and reduce the cost of managing human resources by up to 7% (Bughin et al. 2019).

Figure 3. Reproduced from Bughin et al. 2019. Figure 3 above shows the number of people in the United States and 5 countries from the EU that utilizes digital platforms to earn income. 24 million out of all independent workers use digital platforms, and 15% of those share that they have earned income from these modern tools. Specifically, up to 63% of independent workers who make a living by selling products use digital platforms as their source of earning income.

On the other hand, wage gap is mentioned in this MGI report as one negative impact of technology adoption on the economy. Recently, digitization and automation have contributed to huge income gap between high-skill and low-skill workers and pressurize the middle class (figure 4).

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Figure 4. Reproduced from Bughin et al. 2019. Figure 4 illustrates the increase in low-wage workers (except for Luxembourg and Finland) and high-wage working professionals in 17 countries while the number of middle-wage jobs decrease significantly, indicating a huge income inequality among the population. Since 1900s, lower-wage occupations have seen an increase of approximately 2% to 7%, while high-wage’s increase is up to 10-14% in some countries. Low-wage occupations are laborers and service workers whose wages are rarely enough to support their daily needs, let alone saving for retirement.

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Unemployment risk is considered another possible negative economic impact of technology. The employment ratio is reported to have reduced by about 0.18% to 0.34% every time one robot is deployed, thus heavily affecting low-skill workers in manufacturing industries that are largely automatized these days (Bughin et al. 2019). However, this risk is only temporary for about 5 years before training and rehiring take place. Technology adoption opens more doors for new occupations, for example software engineering. Technology is also a source for improving training and education, improving the flexibility of labour market.

Figure 5. Reproduced from Bughin et al. 2019. Figure 5 shows that the proportion of unemployment is lower due to higher flexibility in labour-market and on-site training, fuelled by technological tools. The top 20% (top quintile) of the population only see 4.56% of unemployment rate in both categories. In conclusion, technology adoption can have both positive and negative economic impacts, according the MGI report. Positive areas in which technology adoption positively affects are GDP growth and improved productivity. Besides, technology also imposes some potential risks on the economy, including income inequality and unemployment. However, according to this report, unemployment can be tackled by implementation of technology into training and education. It also depends on the approaches taken by the government, businesses and other stakeholders to tackle the challenges of technological risks, in order to make the most out of technology for sustainable growth.

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PART B: Descriptive Statistics Analysis a) Analysis of 3 measurements: Based on the analysis of 3 measurements below, it can be concluded that paid apps receive higher ratings from customers than free apps.

Central Tendency I.

Box-and-Whisker Plots

Variation

Measurements of Central Tendency Paid Educational Apps

>,

4.4

Mode

4.7

>

4.6

Figure 6. Measurements of Central Tendency of the Free and Paid Educational Apps Customer Ratings

Analysis: In this case, Median is the most suitable among three measurements because customer ratings are ordinal data – data which includes rankings, and the average ratings of both apps are the same (mean = 4.25). The median of paid apps (4.5) is higher than free apps (4.4), indicating half of the customers give paid apps higher scores than free apps. This suggests that paid apps receive higher preference from the customers when compared to free apps. II.

Measurements of Variation Paid Educational Apps

>,

0.674

Coefficient of Variance – CV (%)

20.07

>

15.86

Range Interquartile Range – IQR

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Figure 7. Measurements of Variation of Paid and Free Educational Apps Customer Ratings

Analysis The average (mean) customer ratings of both apps are the same, so there is no need to use CV as CV is typically suitable for situations where the average values are extremely different. Therefore, standard deviation – S.D is the most suitable measurement in this case. Paid apps have higher S.D than free apps, suggesting that paid apps receive extremely high scores or low scores from customers more frequently than free apps. However, it is unknown whether there are more exceptionally high ratings than low ratings or not, so it is inconclusive about which apps are more favored by customers if only using measurements of variation. III.

Box-and-Whisker Plot Analysis

Figure 8. Box-and-whisker plots of Paid and Free Educational Apps Customer Ratings

Left side 0.3

>,

Right side 0.2

Result Left-skewed

Whisker

3.2

>

0.3

Left-skewed

Median to Extreme value

3.5

>

0.5

Left-skewed

Box

Figure 9. Summary of box-and-whisker plot of Paid Educational Apps customer ratings.

Left side 0.4

>,

Right side 0.3

Result Left-skewed

Whisker

3.0

>

0.3

Left-skewed

Median to Extreme value

3.4

>

0.6

Left-skewed

Box

Figure 10. Summary of box-and-whisker plot of Free Educational Apps customer ratings.

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Analysis As can be seen from figure 8, 9 and 10 above, both apps have left-skewed distribution, meaning that most customer ratings of both concentrate on the right side where there are higher values. However, there are still some differences: 

The box plot of paid apps is in higher position than free apps (4.2 – 4.7 compared to 4.0 – 4.7), which shows that 75% of the customers rate paid apps higher than 4.2 while free apps receive 75% of the ratings no less than 4.0.



Moreover, the right-side box of paid apps is smaller than free apps, indicating the paid apps receive high scores (higher than 4.5 – paid apps’ center rating value) more frequently from 25% - 50% of the customers than free apps.

* Conclusion: Overall, paid apps receive higher customer ratings than free apps because the analysis of two out of three measurements support this conclusion. Specifically, median of paid apps is higher than free apps, indicating higher preference of customers for paid apps. In terms of standard deviation (S.D), paid apps have higher S.D, but it is indecisive about which apps have higher ratings due to lack of data. Regarding box-and-whisker plots, the size and position of paid apps’ box compared to that of free apps show that they receive higher customer satisfaction as analyzed above.

b) Two other numerical variables 1. Active app users It is suggested that customer preference for an app can be measured based on the number of users who actually use the apps on a regular basis rather than only downloading it. This metric is believed to provide data about the number of key customers who show a high level of preference for the app (Sela 2019). 2. App retention According to Armour (2018), retention refers to the percentage of users that return to an app within 3 months from their first using period (session). This method is believed to be useful when comparing between apps in terms of customer preference, since it shows whether an app is appealing enough for the customers to go back to using it (Sela 2019).

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References Armour, B 2018, ‘5 Methods For Increasing App Engagement & User Retention’, Clearbridge Mobile, viewed 16 November 2019, . Bughin, J, Hazan, E, Allas, T, Hjartar, K, Manyika, J, Sjatil, PE & Shigina, I 2019, Tech for Good: Smoothing disruption, improving well-being, McKinsey Global Institute. Sela, J 2019, ‘The Best Metrics & Tools for Measuring User Engagement’, Appsee Blog, blog post, 7 January, viewed 16 November 2019, .

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