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WESTERN SYDNEY INSTITUTE OF TAFE

Mount Druitt College Student’s Name…………………………………

Student Number ……………… USI …………….

KNOWLEDGE ASSESSMENT

UNIT CODE UEENEEE124A

UNIT NAME Compile and produce an energy sector detailed report

Submission Date

4th Dec 2018

WEIGHTING 60% of Final mark for the unit

Assessment criteria

To successfully complete the assessment, it is required to attempt all tasks and achieve over 70% of total marks.

ASSESSMENT COVERAGE

Unit Guide UEENEEE124A

ELEMENT

Required Knowledge and Skills

PERFORMANCE CRITERIA T1 Communicating with personnel

T2 Communicating with suppliers

T3 Communicating with customers

T4 Purpose and extent of maintaining work activities records in an enterprise

T5 Techniques of analysis

T6 Summary of statistics

T7 Correlation and regression

T8 Investigation and reporting

Assessor _______________________

Marks Allocated

Marks achieved

Assessor

Feedback

Students

Remarks

TOTAL 100

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Question 1 (10 marks)

1. Twenty rolls of cables were weighed to the nearest ½ kilogram. The results are shown in the table below.

64.5 65 64 68.5 62 65.5 71.5 70.0 69.0 67.5

63.5 66.5 68.0 72.0 69.5 66.0 68.5 64.5 65.0 66.0

65 64 68.5 71.5 67.5 67.5 66 63.3 64.5 66.0

Use the data to create each of the diagrams listed below.

a) Frequency distribution. (3 marks)

Data Frequency Data Frequency

60 66

60.5 66.5

61 67

61.5 67.5

62 68

62.5 68.5

63 69

63.5 69.5

64 70

64.5 71.5

65 72

65.5 72.5

b). Stem and Leaf Plot (3 marks)

6

7

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c) Histogram and Frequency Polygon with class interval of 2 Kg. (6 marks)

Cou

nt

Range

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Question 2: Draw Statistical Diagrams (10 marks)

The data set given here was collected through a questionnaire distributed to ten Engineering Diploma students. It represents the number of hours study they did in the five days prior to a final examination and the percentage scored in that event.

a) Create a scatter plot based on the data provided (5 marks)

Hours of study % grade

3 80

5 90

2 75

6 80

7 90

1 50

2 65

7 85

1 40

7 100

b) Draw the line of best fit for the dataset. (2 marks)

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c) What conclusion/s would you draw from data and the shape of the scatter plot.(3 marks)

_____________________________________________________________________

Question 3: Draw in Interpret Data (15 marks)

The following data represents current readings from an instrument panel over a period

of three days (readings were taken approximately every 2 hours)

4.3, 5.1, 3.9, 4.5, 4.4, 4.9, 5.0, 4.7, 4.1, 4.6, 4.4, 4.3, 4.8, 4.4, 4.2, 4.5, 4.4, 7.2

a) Calculate the median (2 marks)

b) Calculate the range (1 mark)

d) Calculate the 1st quartile (2 marks)

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e) Calculate the 3rd quartile (2 marks)

f) Calculate Interquartile Range (2 marks)

g) What are the outliers in the data set? (1 mark)

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h) Draw the box plot for the data set including outliers. (3 marks)

h) Draw the box plot excluding outliers. (2 marks)

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Question 4 Analysing Univariate Data (10 marks)

An electrician measured and recorded the mains voltage of number of rural customers

in a single day and recorded data in a Stem and Leaf table.

Voltage measured.

22 3 5 5 6 7 8 8 9 9

23 0 1 2 3 5 5 6 6 7 7 7 8 9 9 9 9

24 0 1 1 1 1 2 2 2 3 3 4 5 6 6 6 7

For the above set of data

a) Calculate the Inter Quartile Range (4 marks)

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b) Calculate the Variance (S2) (3 marks)

Use MS Excel to list all numbers and workout intermediate steps in calculating

the Variance. Attach a printed copy of the worksheet to submission.

Use the following formula to calculate the Variance.

Need to show steps in calculating the Variance in a separate sheet. (May use excel)

c) Calculate Standard deviation of the data set. (3 marks)

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Question 5: Analysing Bivariate Data (5 marks)

a) Explain the meaning of “Bivariate Data” in statistics. (3 marks)

b) Write the formula used to calculate correlation coefficient of a collection of

Bivariate data. (2 marks)

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Question 6: Calculating Correlation and Determination Coefficients (10 marks)

As a part of an investigation in to ways to cut costs, a senior management team asked

a repair crew of an energy company, to drive their vehicle at various speeds and

calculate the fuel consumption.

Following is the table with results.

Speed

Km/Hour

Fuel Consumption

Litres/100Km

30 15.9

40 16.7

50 15.0

60 12.9

70 11.46

80 10.2

90 9.6

100 7.9

110 8.1

a) Draw a Scatter Plot for the data set. (5 marks)

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b) Calculate the coefficient of correlation and coefficient of determination. (5

marks)

Record Speed (X) Consumption

(Lt)

XY X2 Y2

1 30

2 40

3 50

4 60

5 70

6 80

7 90

8 100

9 110

∑X ∑Y ∑XY ∑X2 ∑Y2

Sum

Correlation Coefficient = ------------------------------------------------------------------------

= ____________________

Coefficient of Determination = _________________________

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Question 7: Data Analysis (10 marks)

A Renewable Energy consultant conducted an experiment to find out the effect of

ambient temperature on the electricity producing capacity of solar panels. The

experiment was conducted over a period of time, recording the energy producing

capacity under similar solar irradiation levels for different temperatures.

Following table has the summary of data collected.

Temperature Generated Watts

20 250

25 248

30 236

35 235

40 225

45 224

50 222

55 212 a) Using above set of data, calculate the correlation coefficient (5 marks)

Record Temperature

(X)

Generated

Power

Watts

XY X2 Y2

1 20

2 25

3 30

4 35

5 40

6 45

7 50

8 55

∑X ∑Y ∑XY ∑X2 ∑Y2

Sum

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Correlation Coefficient = ------------------------------------------------------

= ______________________

b) Explain the situations where Regression Analysis would be required in relation to

a set of data. (4 marks)

c) Write two formulas used to calculate the constants of Regression Line for a set of data. (2 marks)

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d) Using the formula for Regression Line, predict the amount of energy which would

be generated at the following temperatures.

1. 28oC (2 marks)

2. 43oC (2 marks)

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Question 8: Enterprise Communication Methods (20 marks)

8.1) Communication can be defined as:

A) identifying hazards and taking corrective actions

B) the process by which information is exchanged between individuals

C) converting ideas into words and symbols to be shared with people

D) reading descriptive text books to understand course related subjects. (1 mark)

8.2) The content of the communication is called:

A) description

B) a message

C) jargon

D) media richness. (1 mark)

8.3) Any communication that conveys a message using words is called:

A) oral communication

B) verbal communication

C) non verbal communication

D) written communication. (1 mark)

8.4) Any communication that conveys a message using facial expressions or hand signals is called:

A) oral communication

B) verbal communication

C) non verbal communication

D) written communication. (1 mark)

8.5) Communication in the work place is required to:

A) Pass on information about daily work routine

B) give advice to co-workers

C) issue a warning about hazardous material used

D) all of the above. (1 mark)

8.6) Oral communication is better than written communication for:

A) saving time

B) conveying feelings and emotions

C) providing opportunity to give feedback

D) conveying facts and opinions. (1 mark)

8.7) A disadvantage of oral communication is that:

A) it is easy to be aware of the body language of the speaker

B) it does not require on the spot thinking

C) what is said cannot be taken back

D) the receiver of the message has the opportunity to clarify the message. (1 mark)

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8.8) In business, oral communication is suitable for:

A) recording messages

B) confusing workers

C) discussing matters

D) delaying the decision making process. (1 mark)

8.9) Non-verbal communication does not involve:

A) words

B) silence

C) gestures

D) space. . (1 mark)

8.10) Written communication is not suitable when:

A) a record of the communication is required

B) the communication is formal or legal

C) the message is lengthy

D) . it requires a personalised touch. (1 mark)

8.11) Written procedures are used in a workplace.

A) to give instructions to operate a machine

B) to inform updates to company policies and procedures

C) to give a warning to a worker

D) in all of the above cases. (1 mark)

8.12) Managing relationship with suppliers is important to:

A) ensure availability of goods and services required to cater for customers

B) receive gifts and promotional material from sales people

C) extend the payment due dates

D) ask for discounts for products purchased. (1 mark)

8.13) For you to provide excellent service to your customers:

A) your suppliers should give you good discounts

B) you need to have material you need on time

C) you need to purchase all items required in advance

D) you have to quote lowest price every time. (1 mark)

8.14) Communicating effectively with your suppliers is important because:

A) they always give promotional gifts and posters

B) they need to be informed about your upcoming projects to ensure material supply

C) they need to be informed about your financial difficulties

D) you can ask for better discounts for supplied products. (1 mark)

8.15) Most effective method to find out availability of a spare part from a supplier is:

A) email messages, as it is in writing and recorded for future reference

B) telephone conversations, as it gives opportunity to clarify your needs

C) written documents as it can be used to give detailed information

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D) all of the above methods. (1 mark)

8.16) Effective communication with your customers is important:

A) to build your customer base

B) to better understand customer needs

C) to inform your customers about products and services you offer

D) for all of the above reasons. (1 mark)

8.17) Communicating company news, new products and services to customers can be done:

A) sending newsletters using mass email campaigns

B) through the company website

C) using social media platforms such as Facebook

D) via all of the above methods (1 mark)

8.18) If a customer wants to contact you to make a complaint about services delivered by you:

A) do not answer the phone; let the message go to the voicemail

B) answer the phone and pretend you are not the person delivered the service

C) answer the phone, listen to the complaint and take appropriate action

D) answer the phone, listen to the complaint and find a way to avoid fixing the

problem.

(1 mark)

8.19) Asking your clients for feedback on the products and services you offer:

A) is an unnecessary trouble for the customer as they don’t want to spend time

B) is wasting your valuable time which can be spent serving another paying

customer

C) can help you to find out their thoughts on your products and services

D) can help you to find out their financial difficulties. (1 mark)

8.20) Customer Relationship Management (CRM) systems are used by companies to:

A) maintain customer’s invoicing details and tracking payments

B) keep the customer’s contact details up to date and track interactions with them

C) collect information of people from social media such as Facebook and contact

them

D) keep employees contact details and wages in one database (1 mark)

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Submission.

Submit a copy of your assessment items (Knowledge and Skills) in the WSI Online website.

The link to the website is,

https://wsionline.wsi.tafensw.edu.au/course/view.php?id=3022

When you reach the website, you will be asked to enter an enrolment key.

Enter UEENEEE124A$2018 as the enrolment key.

Open the Assessments Tab to find the copies of assessment and submission.