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Compare and contrast the shopping process at a bricks and mortar store such as Macy's or Target and at an Internet retailer such as Amazon.com. How are these processes different? (Hint: Consider the process steps, the inputs, outputs, resources, and customers.) Are there differences in the performance (effectiveness and efficiency) of the two processes? Which process is superior, and why?
From a random sample we know that the average duration of unemployment in a low developed region A is 147 days (with standard deviation sA = 32 days and nA = 230 unemployed).
A random sample of 100 students at Southern University was collected. The mean age was found to be 24.2 years, with a standard deviation of 3.4 years.
How much does a typical employee and his or her family spend per year on dental expenses? Construct a 95 percent confidence interval for the population mean. Interpret the interval.
Merta reports that 74% of its trains are on time. A check of 60 randomly selected trains shows that 38 of them arrived on time. Find the probability that among the 60 trains 38 or fewer arrive on time.
A researcher wishes to study the effect of a new drug on blood pressure. Consider and discuss the following questions as you respond:
A data set has n=5 pairs of X and Y values. This data has SSx=10, SSy= 40 and SP=10. Compute the Pearson correlation and explain.
A simple random sample of 120 orders will be used to estimate the porportion of first time consumers. Assume he is correct. What is the sampling distribution of p for the study?
question 1 the gallop poll folks found that 27 of adults surveyed national survey said that they had been in a
Formulate the null and alternative hypothesis for this management question (i.e. can the financial analyst conclude that there is no difference in the average earnings yield between companies in the manufacturing and retailing sectors?)
A company will promote two employees out of a group of six men and three women, what would you say the chances of this experiment if there is particular concern about gender equity and which concept of probability would you use to estimate these p..
Devise a method for estimating and plotting Bayesian credible regions for the paramters, using your MCMC sample and compute LS estimators of a and b,
Why is transportation planning an important aspect of global freight movement? What types of planning must be done?
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