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In the following situations, decide whether you would use a personal interview, telephone survey, or self-administered questionnaire. Give your reasons. a A survey of the residents of a new subdivision on why they happened to select that area in which to live. You also wish to secure some information about what they like and do not like about life in the subdivision. b A poll of students at Metro University on their preferences among three candidates who are running for president of the student government. c A survey of 58 wholesale grocery companies, scattered over the eastern United States, on their personnel management policies for warehouse personnel. d A survey of financial officers of the Fortune 500 corporations to learn their predictions for the economic outlook in their industries in the next year. e A study of applicant requirements, job tasks, and performance expectations as part of a job analysis of student work-study jobs on a college campus of 2,000 students, where 1,500 are involved in the work-study program. Write a 150- to 200-word response for each of the five parts in the question. In each of your responses, provide rationale to support your decisions:
A larg wholesale nursery sells shrubs to a retail store. The cost C(x) and revenue R(x) in dollars for x shrubs are listed below:
Which depressed this tobacco company stock.) Describe the shape, center, and spread of the data after you omit the outlier. (c) The data appear in time order readi.
The significance level of a statistical test is equal to the probability that the null hypothesis is true.
Determine equation in point-intercept form for line that goes through points (8,-1) and (4,3).
High principal has decided to give an award to any student who scores in the top 10% of statewide scores. How high should a student score be to win this award? Give your answer to the nearest integer.
A circus clown at the top of a 60-foot platform is playing catch with another clown on the ground. The clown on the platform drops a ball at the same time as the one on the ground tosses a ball upward at 80 ft/sec.
If the top 15% of the test scores are usually good enough for admission to law school, find the cut off score for gaining admission.
A sample of n= 16 scores has a mean of M = 45 and SS = 960. Calculate the sample standard deviation (s) and the estimated standard error for the sample means (SM).
A project manager at COMSOFT corporation has collected statistics on the organization's software development process. He has the size of each project in number of lines of code for the past 20 projects and the number of lines of code in error disc..
A manager at a local manufacturing company has been monitoring the output of one of the machines used to manufacture small aluminum plates.
Under what situations must the nonparametric test be used? Describe in detail. Write down the strengths and weaknesses of nonparametric tests?
Construct a time series plot. What type of pattern exists in the data? Compute the exponential smoothing forecasts for a = .2.
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