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The attached figure is from a journal article entitled "Neighborhood Social Disorder as a Determinant of Drug Injection Behaviors: A Structural Equation Modeling Approach" (Latkin, Williams, Wang, & Curry, 2005).
a. What are the four latent variables examined in this study?
b. What manifest variables were used to operationalize social disorder? Based on these manifest variables, explain in your own words what you think the authors mean by "social disorder."
c. Looking only at the latent variables, which two variables seem to be most strongly related to each other? What is the number on that path? Is it positive or negative, and what does the sign of the number indicate about the relation between these variables?
d. Looking only at the latent variables, what overall story is this model telling?
Let X be the number of tumors in a fish living in a river. Suppose that it has the following probability mass function f(0) = 0.9 f(1) = 0.7 f(2) = 0.02 f(3) = 0.01 A random sample of size n = 30 is selected from this population. Approximate the p..
obtain a list of patients discharged from all mmh facilities. divide the patients according to length of hospital stay
peak expiratory flow pef is a measure of a patientotildes ability to expel air from the lungs. patients with asthma or
What are its classes? What are their periods? Are they transient or recurrent? Compute the transition probabilities Pi,j .
You have been working for a physician in private practice for 8 months. You start to see a pattern with several of his workers' compensation cases. Some of these patients seems to have more tests and procedures ordered than others with similar con..
For the quarterback in part (b), what is the 95% prediction interval for his passer rating next year?- For quarterbacks similar to the one in part (b), what is the 95% confidence interval for their mean rating next year?
A survey found that the variance of the rental rates on 8 cars at the airport was 35.7 while the variance of the rental rates on 5 cars down town was 50.4. What test value should be used in a F test?
you are applying for graduate school at university a. in the past 42 of the applicants to this university have been
You now conduct a series of experiments with electro-migration at the same 2 temperatures (T1 = 25ο C and T2= 60ο C). The current density at T1 was 2 mA/μm2 and the current density at T2 was 1 mA/μm2.
• Customer service (Oracle, Amazon, Dell, Sage) Start with www.searchcrm.com and www.customerthink.com (to ask questions about CRM solutions). Have each group present arguments to convince the class members to use the product(s) the group investig..
The middle five weeks, and 60% during the last 5 weeks. Would a time-series graph of this data be appropriate? Give a reason for your answer.
Identify a research question from your professional life, research interests, or everyday experience that could be addressed by this analysis.
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