ACCA MA · Chapter 2 · Question 1 of 12
A quality inspector chooses a random starting point from the first 20 items on a production list, then selects every 20th item after that. Which sampling method is being used?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) Systematic sampling
Explanation
Systematic sampling picks every nth item from a list after a random start. Simple random sampling gives every item an equal chance of being chosen independently, stratified sampling divides the population into groups first, and quota sampling is a non-random method.
More Data analysis and statistical techniques MCQs
- Q3A cost index (base Year 1 = 100) stood at 160 in Year 4 and 184 in Year 6. What was the percentage increase in costs between Year 4 and…
- Q4Prices and quantities for two items are as follows: Base year: Item X price $2, quantity 15; Item Y price $5, quantity 4 Current year…
- Q5The correlation coefficient between monthly output and total production cost has been calculated as 0.8. What proportion of the variation…
- Q6A company has the following data for five periods, where x is output (000 units) and y is total cost ($000): Sum of x = 50, Sum of y =…
- Q7Which value of the correlation coefficient (r) indicates perfect negative correlation?