Statistics for Finance/ Management I Assignment 1 | MU Malaysia

Assignment 1

Note  

1. Show all the necessary information’s neat and clearly for questions Part II
2. Submission date Thursday December 25/2025 or Tahisas 16/2018
3. Write all group members’ names alphabetically and ID numbers on the front page of your assignment paper.
4. A total of 20 marks (chapter 1 & 2)
5. The group members not exceed more than 7, but it is possible below seven

Part I : For each variable listed, identify:

1. Type: quantitative or qualitative
2. If qualitative, specify nominal or ordinal; if quantitative, specify interval or ratio

• Nature: discrete or continuous (if quantitative)

Use these as examples how the variables to classify (Type: Quantitative, Scale: Interval (no true zero, differences meaningful but ratio not, Nature: Continuous):

1. Hair length in centimeters for a sample of adults
2. Eye color of participants (blue, green, brown, etc.)
3. Number of children per household
4. Education level (High School, Bachelor’s, Master’s, PhD)
5. Annual income in dollars
6. Brand of smartphone used by respondents (Apple, Samsung, Google, Others)
7. Satisfaction rating on a 1–5 Likert scale
8. Time to complete a puzzle in minutes and seconds (e.g., 12:34)

Part II Method of data Presentation 

Part A

A finance team tracked the number of invoices processed per day for a 10-day period to monitor workload.

Summarized data (invoices processed per day):

Day 1: 42      Day 2: 37     Day 3: 45     Day 4: 40     Day 5: 52 Day 6: 46      Day 7: 39     Day 8: 44     Day 9: 41     Day 10: 50

Questions:

1. Create a single-series bar chart using the data above.
   • X-axis: Day (1–10) and Y-axis: Invoices processed
2. Provide three concise insights from the chart (e.g., days with unusually high/low workload).

Part B

The finance department compares monthly budget vs. actual expenses for three departments (A, B, and C) over a single quarter (3 months: Q1, Q2, Q3). Use summarized data provided. Summarized data presented in thousands of Birr:

• Department A: Budget = [120, 125, 130], Actual = [118, 128, 135]
• Department B: Budget = [95, 100, 110], Actual = [97, 98, 105]
• Department C: Budget = [80, 85, 90], Actual = [82, 88, 85]

Questions: From these sample data

1. Create a multiple bar chart that displays Budget vs. Actual for Departments A, B, and C across the three quarters.
   • Bars for each department per quarter should be grouped together.
   • Use distinct colors for Budget and Actual.

2. Provide three observations from    the       chart    (e.g.,    which department      consistently underspent/overspent).

Part C

The accounting team wants to visualize the distribution of a company’s total non-salary operating expenses across its major categories for a given month.

1. Create a pie chart illustrating the share of each expense category in the total operating expenses.
2. Compute and report each category’s percentage of the total (round to one decimal place).
3. Determine the category that contributes the largest share and identify its percentage.

Part D

A Sample data are given weekly sales in thousands of a given supermarket

[5, 7, 6, 8, 9, 5, 6, 7, 8, 10, 9, 11, 7, 6, 5, 8, 9, 10, 12, 11, 9, 8, 7, 6, 5, 4, 6, 7, 8, 9, 10, 11, 12, 13, 11, 9, 8, 7, 6, 5, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]

Questions: From these sample data construct :

1. A frequency distribution table, use Sturges’ formula to calculate the class width
2. Construct a histogram,
3. A frequency polygon less than type.

Answer

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