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One of the major measures of the quality of service provided by any organization is the speed with which it responds to customer complaints. A large family-held department store selling furniture and flooring had undergone a major expansion in the past several years. In particular, the flooring department had expanded from 2 installation crews to an installation supervisor, a measure, and 15 installation crews. The store had the business objective of improving its response to complaints. The variable of interest was defined as the number of days between when a complaint was made and when it was resolved. Prior to increasing the staff, the mean number of days to resolve a complaint was 45. Data were collected from 50 complaints that were made in the past year. The sample data showed the mean number of days for resolution was 40 with a standard deviation of 18 days. Perform the appropriate test to determine if the mean number of days it takes to resolve a complaint decreased after the staffs was increased. Use alpha = .05.............b. In addition to reducing the time it takes to resolve a complaint, the store also wanted to decrease the percent of flooring jobs that resulted in a customer complaint. Before expanding the crew, the percentage of flooring jobs resulting in a customer complaint was 8%. In a sample of 225 flooring jobs, 15 resulted in a customer complaint. Is there evidence the percentage of jobs with customer complaints decreased as well? Perform the test at alpha = .05
And what is the decision rule for each part?
Illustrate what are consumption also saving in each period, suppose no borrowing constraints. What happens if the consumer faces a borrowing constraint that prevents her from borrowing.
q.assume that omar s marginal utility for cups of coffee is constant at 3.5 units per cup no matter how many cups he
Total hours worked, and average labor productivity all are procyclical. Which variable, output or total hours worked, increases by a larger percentage in expansions falls by a larger percentage in recessions.
What is the outcome of the case and whether you agree with the final decision and why?
Which is the safer investment, Company A Stock, Company B Stock, or a porfolio containing half of each If you make a lucky prediction about the prices of the stocks of the two companies, will you earn more or less if you invest in that company rat..
Illustrate what are the long run equilibrium price, quantity of a single firm and the industry output. How many firms are in the market.
What are the economic and political arguments for regional economic integration? Given these arguments, why don't we see more integration in the world economy?
Elucidate how if at all every of the following events will affect a country's production possibilities curve.
Assume to John Smith gets promoted to a job to cause two changes to occur simultaneously: John earns a higher wage also safer environment
Illustrate wat would happen if suppliers set the price of pizza at $15. Explain the market adjustment process.
In 1976 independent Texaco retailers file suit against Texaco. In 1990, the Supreme Court of the United States found that Texaco had indeed violated antitrust law. Illustrate which law do you think Texaco was found guilty of violating.
if korean exports to the united states decline by 15 billion by how much will cumulative korean spending drop if their
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