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"A company of accountants has branches in five regions, Port Louis (PL), Curepipe (CPE), Beau Bassin (BB), Rose Hill (RH) and Quatre Bornes (QB). It employs the following number of staff at each branch - 120 at PL, 80 at CPE, 40 at BB, 60 at RH, 100 at QB.
Suppose the company wishes either to involve every employee, or conduct a survey of 20% of its employees. Advise how the sample for surveying should be best selected by each of the following sampling methods, commenting on the advantages of each:
a. Census. b. Cluster sampling.c. Simple random sample.d. Stratified random sample. e. Systematic sample.
difference between regression or non-regression
Skewness It is the comparison of the mean, median and mode can reveal information about the characteristics of skewness. Definition The distribution of the data is ske
Consider the manufacturing system presented in the article by Yu and Bricker (1993). The management would like to purchase new machine tools more reliable and more high accuracy
Ask quesA buffalo, your cola distributor is featuring a super-special sale on 12- packs. She wonders where in the grocery store to place the cola for maximum attention. Should it b
What is sampling fluctuation
A box contains 20 fuses of which 5 are defective If 2 fuses are chosen together at random what is the probability that both the fuses are defective?ion..
1.) Consider two chains R and S, each having 3 and 6 links respectively. Each link's resisting strength is normally distributed with a mean of 60,000 psi and standard deviation of
Now imagine that consumption is given as: C = 400 + 0.9YD - 1,750i And as above: Y = PE = C + I + G + NX (Income identity)
ABC company has 2000 accounts receivable. The mean and standard deviation are $300 and $50, respectively. Assume that the accounts are normally distributed.
Consider the sample data for plants A, B, C & D of the above company, which are tabulated in table 1. Test whether the four means are equal at the 5% level of significance. Perform
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