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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?
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1. Generate a large dataset ( at least 1000 observations) µ with a known mean, µ between 20 and 40 and variance s = 9 using rnorm(). identify it as D. Use the functions mean() and
what is method of least squares
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Calculate Correlation coefficient for X and Y, Statistics Homework • Variable X x • Variable Y y • Calculate: • z-scores for all values in the variables • correlation coefficien
Prior to the last payroll period of the calendar year, the cumulative earnings of Employer A were $105000. The earnings for the last payroll period of the year which will be paid o
Bob Smith recently completed his MBA and accepted a job with a computer company. To ensure that his retirement is comfortable, he intends to invest $3,000 of his salary into a tax
Solving accounting assignments
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