Question

[25] Question 1 1.1 Quarterly sales (N$ 000 000s) for a clothing store for the past three financial years were recorded and are summarized in the table below. The store management would like to use this sample data to learn about the sales performance at its two branches. Sales Branch Year 1 Year 2 Year 3 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 A 8.2 10.4 16.1 12.9 12.5 13.9 17.2 25.2 13.4 14.2 10.5 22.3 B 8.5 11.8 17.2 18.4 13.0 14.5 16.6 12.4 13.8 14.9 18.2 - Required: Calculate the following descriptive statistics for each branch: a) Mean. (2) b) Median. (2) c) Coefficient of variation. (4) d) Interquartile range. (6) 1.2 Use the descriptive statistics calculated in 1.1 to compare the sales performance at the two branches. (3) 1.3 The total quarterly sales (N$ 000 000s) for the clothing store for the past 20 years is summarized in the table below: Quarterly sales (N$ 000 000s) Frequency [0 - 4.9] 4 [5 - 9.9] 3 [10 - 14.9] 1 [15 - 19.9] 8 [20 - 24.9] 4 Required: a) How many quarters had quarterly sales below N$ 15 000 000? (1) b) What percentage of the quarters had sales of at least N$ 5 000 000? (1) c) What is the mean for the quarterly sales? (3) d) What is the 50th percentile for the quarterly sales? (3)

          [25]
Question 1
1.1 Quarterly sales (N$ 000 000s) for a clothing store for the past three financial years were recorded and are summarized in the table below. The store management would like to use this sample data to learn about the sales performance at its two branches.

Sales
Branch Year 1 Year 2 Year 3
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
A 8.2 10.4 16.1 12.9 12.5 13.9 17.2 25.2 13.4 14.2 10.5 22.3
B 8.5 11.8 17.2 18.4 13.0 14.5 16.6 12.4 13.8 14.9 18.2 -

Required:

Calculate the following descriptive statistics for each branch:
a) Mean. (2)
b) Median. (2)
c) Coefficient of variation. (4)
d) Interquartile range. (6)

1.2 Use the descriptive statistics calculated in 1.1 to compare the sales performance at the two branches. (3)

1.3 The total quarterly sales (N$ 000 000s) for the clothing store for the past 20 years is summarized in the table below:

Quarterly sales (N$ 000 000s) Frequency
[0 - 4.9] 4
[5 - 9.9] 3
[10 - 14.9] 1
[15 - 19.9] 8
[20 - 24.9] 4

Required:
a) How many quarters had quarterly sales below N$ 15 000 000? (1)
b) What percentage of the quarters had sales of at least N$ 5 000 000? (1)
c) What is the mean for the quarterly sales? (3)
d) What is the 50th percentile for the quarterly sales? (3)

[25]
Question 1
1.1 Quarterly sales (N000 000s) for a clothing store for the past three financial years were recorded and are summarized in the table below. The store management would like to use this sample data to learn about the sales performance at its two branches.

Sales
Branch Year 1 Year 2 Year 3
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
A 8.2 10.4 16.1 12.9 12.5 13.9 17.2 25.2 13.4 14.2 10.5 22.3
B 8.5 11.8 17.2 18.4 13.0 14.5 16.6 12.4 13.8 14.9 18.2 -

Required:

Calculate the following descriptive statistics for each branch:
a) Mean. (2)
b) Median. (2)
c) Coefficient of variation. (4)
d) Interquartile range. (6)

1.2 Use the descriptive statistics calculated in 1.1 to compare the sales performance at the two branches. (3)

1.3 The total quarterly sales (N 000 000s) for the clothing store for the past 20 years is summarized in the table below:

Quarterly sales (N000 000s) Frequency
[0 - 4.9] 4
[5 - 9.9] 3
[10 - 14.9] 1
[15 - 19.9] 8
[20 - 24.9] 4

Required:
a) How many quarters had quarterly sales below N 15 000 000? (1)
b) What percentage of the quarters had sales of at least N5 000 000? (1)
c) What is the mean for the quarterly sales? (3)
d) What is the 50th percentile for the quarterly sales? (3)

Added by Lisa B.

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