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Q1.(i) The logistics department of a large firm employs three "estimators" whose job it is to decide the likely cost of delivering their products to their customers. This enables them to negotiate with Third Party Logistics (3PL) providers for an acceptable price. In order to check if there is any serious discrepancy between the methods used by the three they were each asked to produce estimates for the same four jobs. The results (in hundreds of pounds) are shown in the table below:
(a) Does the data suggest any discrepancy between the estimators?
(b) Is it possible to identify any interaction between estimators and jobs? Explain your answer.
(ii) Two computer operating systems were compared to test the disc access response times. The results (in milliseconds) are shown below:
Does it seem that there is a significant difference between the two operating systems?
Suppose that cars pass a certain toll booth at an average rate of 10 cars per minute between the hours of 7 a.m. and 9 a.m. The random variable X counts the number of cars that pas
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difference between tests of goodness of fit & tests of independence
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I am in need of your help again. First and foremost, I thought I had created an account, but none could be found. In any event here is my assignment. Should you decide that you
the correlation between olympic gold medal times for the 1500 m run and year is -0.941 seconds per year
meanings of statistics by different authors and importance of statistics in the field of Education
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