Question

PO2508 Understanding Statistics EXERCISE SHEET1 1. Classify each of the following as nominal, ordinal, interval or ratio level data: a. The telephone area code of interviewees inten。し b. The weight of fish landed at Fraserburgh ner c. Survey responses that scale attitudes towards a business from 1 to 5 d. The time required to sell a house nternuL e. Football players shirt numbers Inter f. The Richter scale used to measure earthquake strength g. Job satisfaction ratings of a sample of employees 2. Consider the following economic and environmental performance indicators for a sample of nine countries: Country GDP per Carbon capita (000 dixide USS) emissions per capita 3.5- 1.9-一 South Korea Italy Ukraine Poland Mexico Australia South Africa Brazil 13.5 24.4 15.9 9.6 9.1 26.3 8.5 4.4 26.1 2.1 3.5- 1.0 4.4 0.6- 2.8- 217 a) Calculate the mean, median and modal value of carbon dioxide emissions per capita aud UK for this sample of countries. b) Calculate the mean and median GDP per capita for the sample and interpret the difference between them. Is the distribution of GDP per capita skewed to the left or to the right?

Answer 1