2. (Three parts; 7 marks in total) A company that is setting up a new factory is

Question

2. (Three parts; 7 marks in total) A company that is setting up a new factory is interested in comparing the efficiency of two types of machines (Model A and Model B) in assembling their product. They randomly selected 8 workers employed by the company. Subsequently, they randomly assigned each worker to operate one machine of Model A and one machine of Model B in a random order. The table below shows the time (in minutes) taken for each worker to assemble one unit of the product on each type of machine Time (in min) Worker Fred Stanley Jessica Ali Lorraine Chen Fatuma Victoria Model A 23 26 19 24 27 Model B 21 24 23 25 24 28 24 23 20 18 Statistics 252-Homework # 1-Winter 2018 . Questions (a) (1 mark) What is the population of interest?

Explanation / Answer

Here population of interest is the difference between time taken for workers to assemble one unit of the product in each type of machine.

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