ECO 502 Decision Making

GDP data for some countries across 3 consecutive years are recorded in the following table:

• Conduct appropriate calculations to show in a tabular format:

1. Proportion of change from 2014 to 2015 and 2015 to 2016

1. Share of GDP for the countries across three years

(ii) Use appropriate graphs to depict:

1. Volume of GDP for the countries across three years;
2. Share of GDP for the countries across three years;
3. c) Proportion of change (from 2014 to 2015) and comment on this.

In a computer assembly line, workers take different time to assemble the parts. The amount of time needed (in seconds) for the assembly was recorded for 100 workers.

1. Determine the approximate number of classes and the class width (round-up the width if necessary) you would use to represent the above data Explain your reasons.
2. Create a frequency distribution of time for 100 workers
3. Draw a frequency histogram
4. Calculate the relative frequency and draw relevant histogram
5. Draw an Ogive
6. Find the proportion of time taken for assembly between 100-150 seconds; 200-250 seconds. Explain your answer fully.

Answer: