# Using the sample data attached, calculate descriptive statistics measures of central tendency and…

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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