70+ Family Quantitative methods Version 1
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QM sample in-class test
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Section A (10marks) Write True or False for the Q1 - Q5 in your Answer book. Surname Q1. The number of books found in library is quantitative ratio data. Answer: [2 marks] Q2. Empirical studies indicate that about 99% of the normally distributed data lie within 3 standard deviation from the mean value. [2 marks] Answer: Q3. For the dataset (5, 4, 5, 6, 5), the data are normally distributed. Answer: [2 marks] Q4. The difference between the extreme observations is called range. Answer: [2 marks] Q5. The nominal and ordinal scales of measurements are qualitative data. [2 marks] Answer: Section B (90marks) Q6. List and define 4 types of scale of measurement. ____________________________________________________________________ [15 marks] In Q7-Q10 refer to the data: A convenience store has collected the following data on spring sales of tin openers:
Q7. Identify the type of data in terms of qualitative/quantitative, primary/secondary, raw/aggregate, untabulated/tabulated(unrouped)/tabulated(grouped), cross-section/time series data to you. Briefly explain why. __________________________________________________ [20 marks] Q8. Calculate: a) Range [2 marks] b) Mean [5 marks] c) Mode. [4 marks] d) Median.[4 marks] Q9. Calculate the standard deviation of the data. Q10. Display the data as a cumulative frequency curve. Download 26.32 Kb. Do'stlaringiz bilan baham: |
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