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Can you think of an example where regression analysis can be used? How is regression analysis being used in a retail environment, or how should it be used? Can you think of some retail examples specifically related to strategy formulation and implementation?
Bob Billy is an operations analyst for Dollar-Does-It stores based in Iva, SC. He is currently studying the order and stocking policies for top-selling toy.
What is the minimum sample size required to assure that your sample proportion "p" will be within the required margin of error around the population proportion "p". Use the traditional methods for testing hypotheses and show the results of all ste..
About what percent of the observations lie between 55 and 65?
Construct a 99% confidence interval estimate of the population mean amount of paint in a 1-gallon can.
The average stock price for companies making up the S&P 500 is $40, and the standard deviation is $10. Assume the stock prices are normally distributed. What is the probability a company will have a stock price less than $33.
Suppose you had flipped a fair coin 19 times and "tails" had come up each time. The probability of now tossing a "head" on the 20th flip would then be:
A random sample of 10 shafts has an average diameter of 0.2545 inches. a) Construct a 99% confidence interval of the true mean
Determine the critical value, z0, to test the claim about the population proportion p
What is critical z-value which corresponds to confidence level of 88%.
Failure times for a randomly failing component are 3.3, 14.3, 27.1, 41.3, and 92.2 hours. Find the MTTF and standard deviation using: a) moment estimation. b) maximum likelihood estimation.
Discuss whether this variable should be placed in the model as an ordinary quantitative variable or by means of four 0, 1 indicator variables.
illustrate briefly how an experimental study is conducted. What is the difference between the two types of variables used.
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