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1. How would you describe a confidence interval to someone who does not understand statistics? What is the point of it? Why do we do construct one?2. Find a research article that uses a confidence interval. Give either the citation for it or the website address at which you found it. Discuss what the research was trying to show, as well as the results from the confidence interval. Give a little bit of background information on the study.
The following data represent the monthly service fee in dollars if a customer's account falls below the minimum required $1,500 balance for a sample of 26 banks
The personnel director of a large corporation wants to study absenteeism among clerical workers at the corporation's central office during the year. A random sample of 25 clerical workers reveals the following. Absenteeism: X=9.7 days, S=4.0 days. 12..
What was the sample size and how was the data collected? State the meaning of the confidence interval in terms of the specific question or poll.
Independent random samples taken at two local malls provided the following information regarding purchases by patrons of the two malls.
What is the correlation coefficient and do the data provide sufficient evidence to conclude that the number of years of study and test score are linearly positively correlated? Use α = 0.01
A randomly selected employee earns
A local corporation was interested in the purchasing habits of Wake County residents.Specifically one of the things they were interested in was the proportions of residents that did a major home improvement project in the last year.
Write your own newspaper article for the study with at least one appropriate table or graph.
in a regression analysis a nurse researcher found a correlation of .82 between pain relief scores and satisfaction with
Let's say we have a population comprised of four typists with the following numbers of errors per page of a manuscript: Stephanie X1=3
A survey of people in Iowa showed that 40 out of 400 prefer watching TV comedy shows. Another survey in Colorado showed that 90 out of 600 prefer watching TV comedy shows. At a 1% significance level, would it seem that the true proportions of p..
What does p = .05 mean? What are some misconceptions about the meaning of p = .05? Why are they wrong? Should all research adhere to the p = .05 standard for significance? Why or why not?
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