Reference no: EM131381014
Business schools at certain prestigious universities offer nondegree management training programs for high-level executives. These programs supposedly develop executives' leadership abilities and help them advance to higher management positions within 2 years after program completion.
A management consulting firm wants to test the effectiveness of these programs and sets out to conduct a one-tailed test, where the alternative hypothesis is that graduates of the programs under study do receive, on average, salaries more than $4,000 per year higher than salaries of comparable executives without the special university training.
To test the hypotheses, the firm traces a random sample of 28 top executives who earn, at the time the sample is selected, about the same salaries.
Out of this group, 13 executives-randomly selected from the group of 28 executives-are enrolled in one of the university programs under study. Two years later, average salaries for the two groups and standard deviations of salaries are computed.
The results are x‾ = 48 and s = 6 for the nonprogram executives and x‾ = 55 and s = 8 for the program executives. All numbers are in thousands of dollars per year.
Conduct the test at α = 0.05, and evaluate the effectiveness of the programs in terms of increased average salary levels.
Conduct a test for equality of means
: Assume that these two numbers are the averages of samples of 15 months each, and that both sample standard deviations are 50. Conduct a test for equality of means using the 0.05 level of significance.
|
What opportunities might currency imf lending policies
: What opportunities might currency IMF lending policies to developing nations create for international business? What threat may they create?
|
Advise waldenbooks on possible marketing decision to be made
: Do these data present evidence that one form of travel guide is better than the other? Advise Waldenbooks on a possible marketing decision to be made.
|
Determine which model you think is the best one to use
: Clearly identify the strengths and weaknesses of each model. Identify and discuss two or three issues that Whole Foods Market is facing. Determine which model you think is the best one to use.
|
Evaluate the effectiveness of programs
: All numbers are in thousands of dollars per year.- Conduct the test at α = 0.05, and evaluate the effectiveness of the programs in terms of increased average salary levels.
|
Describe the demographic transition model
: Describe the demographic transition model and how it was developed by demographers.Describe the 4 phases of demographic transition.For each phase, compare crude birth rates (CBR) to crude death rates (CDR), and state whether the population is stable..
|
Conduct a test for equality of means
: Conduct a test for equality of means using α = 0.05 and provide a 95% confidence interval for the average savings per beer for a visitor versus the amount paid at home in London.
|
Conduct a test for equality of population means
: For a random sample of 18 investments in China, the average return was 6.1% and the standard deviation was 5.3%. Conduct a test for equality of population means using α = 0.01.
|
Describe an entertainment poll or survey
: Describe a general opinion poll or survey. Analyze the number of people who participated in the sample compared to the number in the population.
|