QUESTION 1
Using the sample data attached, calculate descriptive statistics measures of central
tendency and dispersion (including mean and standard deviation) for the variables:
i. P/E ratio (1.5 marks)
ii. DPS (1.5 marks)
iii. Did Yld (1.5 marks)
iv. P/Sales (1.5 marks)
Note: Use Excel/PhStat for this question.
QUESTION 2
Use Excel/PhStat to determine normality for ALL the above variables in Question 1. It must be
achieved by the normality plot graphs or box-plot diagram.
(6 marks)
QUESTION 3
Write a summary of descriptive statistical findings in Questions 1 and 2. Determine
whether the data appear to be approximately normally distributed by writing a summary on
the findings in Questions 1 and 2. Refer to the relevant graphs/diagrams/tables in Questions
1 and 2.
(10 marks)
QUESTION 4
Using the sample data, calculate the sample proportion of companies for which Dividend
Yield exceeds 10%, and its corresponding standard deviation.
(5 marks)
QUESTION 5
Set up and interpret the following confidence intervals:
i. a 95% confidence interval for the true population mean ROE. (4 marks)
ii. a 99% confidence interval for the true population mean DPS. (4 marks)
iii. a 90% confidence interval for the true population proportion of all companies
whose Dividend Yield is better than 10%. (4 marks)
Note: The
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