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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:
Students will conduct one brief research exercise that will be written up as a research report using APA style.
Describe the basic characteristics of a normal distribution and the normal curve. What are z scores and how are they used in relation to distributions and raw scores?
Construct and interpret 90 percent on confidence interval for the mean. Be sure to interpret the meaning of this interval.
Suppose that combined verbal and math SAT scores follow a normal distribution with mean 896 and standard deviation 174. Suppose further that Peter finds out that he scored in the top 3% of SAT scores. Determine how high Peter's score must have bee..
Assume that 20 students registered for the course. Compute the probability that more than three will withdraw (to 4 decimals).
Nicotine in cigarettes. To determine whether the mean nicotine content of a brand of cigarettes is greater than the advertised value of 1.4 milligrams, a health advocacy group tests
According to a well-known newspaper journal, 58.3% of the 222,900 households in particular county get the Sunday edition of local newspaper. Assume that random samples of 200 households are selected.
An element E has a constant failure rate λ and a reliability at time t of R(t)=p, if p=0.5 and 0.9, what is the effect on Rs(t), basic reliability, serial Mean Time Between Failure, hs(t), MTBFs if additional elements are added to the baseline sys..
Given that Americans of Mexican ancestry constitute 79.1 % of the populations of those eligible for jury duty and given that Partida was convicted by a jury of 12 people with only 58% (7 jurors) of them that were Americans of Mexican ancestry, can..
A study of 20 worldwide financial institutions shows the correlation between their assets and pretax profit to be .86. At the .05 significant levels, can we conclude that there is positive correlation in the population?
In a speech to the Chamber of Commerce, a city councilman claims that in his city less than 15% of the adult male population is unemployed.
X has a normal distribution with a mean of 80.0 and a standard deviation of 3.5. Find the following probabilities:
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