TMA 1 
BBM203/05 Business Statistics
TMA1
Weightage: 25%
Submission deadline: 6th March 2015
1
a) Explain TWO (2) main differences between qualitative data and quantitative.
(4 marks)
b) Using the example of a group of BBM203/05 students in your class, differentiate qualitative and quantitative data.
(6 marks)
2) A new restaurant did a survey among its customers recently. The following questions were asked in the questionnaire. Identify which type of data are they?
Choose from Qualitative-Nominal, Qualitative-Ordinal, Quantitative – Interval,
Quantitative-Ratio.
(5 marks)
a)
b)
c)
d)
e)
What is your age?
What is your occupation?
What is your marital status?
On average how much do you spend per visit?
Rate the food served: excellent, good, fair, poor, and no comment
3) Classify each set of data as discrete or continuous. Briefly explain your answer
(10 marks)
a) The number of fatalities in an airline crash.
b) The height of students in your class.
c) The number of green M&M's in its tube.
d) The time it takes for a student to finish his TMA.
e) The production of tomatoes by weight
4) Min Soon has been keeping track of her spending. Last week her expenditures for meals eaten out during weekdays are as follows:
Monday
Tuesday
Wednesday
Thursday
Friday
Spent(RM)
6.19
5.69
5.95
7.66
14.53
1
a) Calculate the mean
(2 marks)
b) Calculate the median
(2 marks)
c) If on Saturday she spent RM8, what is the median for these six days?
(2 marks)
d) Make a sketch of the data, showing the mean and median values.
Comment on it.
(4 marks)
5)
Differentiate between discrete random variable and continuous random variable. Give an example for each of this category.
(6 marks)
6)
Differentiate descriptive statistics and inferential statistics using an example.
(5 marks)
WOU University has nearly 300 students. In a recent study done on 30 students in WOU, 24 students stated they prefer to attend night classes rather than day classes. The study concluded that most of the students in
TMA1
Weightage: 25%
Submission deadline: 6th March 2015
1
a) Explain TWO (2) main differences between qualitative data and quantitative.
(4 marks)
b) Using the example of a group of BBM203/05 students in your class, differentiate qualitative and quantitative data.
(6 marks)
2) A new restaurant did a survey among its customers recently. The following questions were asked in the questionnaire. Identify which type of data are they?
Choose from Qualitative-Nominal, Qualitative-Ordinal, Quantitative – Interval,
Quantitative-Ratio.
(5 marks)
a)
b)
c)
d)
e)
What is your age?
What is your occupation?
What is your marital status?
On average how much do you spend per visit?
Rate the food served: excellent, good, fair, poor, and no comment
3) Classify each set of data as discrete or continuous. Briefly explain your answer
(10 marks)
a) The number of fatalities in an airline crash.
b) The height of students in your class.
c) The number of green M&M's in its tube.
d) The time it takes for a student to finish his TMA.
e) The production of tomatoes by weight
4) Min Soon has been keeping track of her spending. Last week her expenditures for meals eaten out during weekdays are as follows:
Monday
Tuesday
Wednesday
Thursday
Friday
Spent(RM)
6.19
5.69
5.95
7.66
14.53
1
a) Calculate the mean
(2 marks)
b) Calculate the median
(2 marks)
c) If on Saturday she spent RM8, what is the median for these six days?
(2 marks)
d) Make a sketch of the data, showing the mean and median values.
Comment on it.
(4 marks)
5)
Differentiate between discrete random variable and continuous random variable. Give an example for each of this category.
(6 marks)
6)
Differentiate descriptive statistics and inferential statistics using an example.
(5 marks)
WOU University has nearly 300 students. In a recent study done on 30 students in WOU, 24 students stated they prefer to attend night classes rather than day classes. The study concluded that most of the students in