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1. Epidemiology, a fundamental discipline in public health, has many applica- tions in the health sciences.
a. Name three types of epidemiologic study designs.
b. What types of problems can we address with them? 2. Suppose a health research institute is conducting an experiment to determine whether a computerized, self-instructional module can aid in smoking cessa- tion.
a. Propose a research question that would be relevant to this experiment.
b. Is there an independent variable (exposure factor) in the institute's experi- ment?
c. How should the subjects be assigned to the treatment and control groups in order to minimize bias?
State the hypotheses for a right-tailed test. (b) Obtain a test statistic and p-value. (c) Is normality assured? (d) If significant, is the difference also large enough to be important?
Big Orange Trucking is designing an information system for use in "in-cab" communica- tions. Compute an appropriate measure of central location for the variables wind direc- tion, temperature, and pavement.
What is the di?erence between the binomial and the Poisson distributions and Give some examples of when we can apply the Poisson distribution.
what statement should be made about the null and alternative hypothesis based on sample data and significance level?
Based on your experience using ANOVA and Nonparametric tests, what additional information would you recommend to the key decision maker solve the challenges given in a company that provides software solutions to wide range of clients?
a paper studied various aspects of bus service and presented data on travel times from several different routes. the
In calculating the UCR rape rates in New York City, which of the following would appear to be the best data for the denominator?
suppose a study estimated the population mean for a variable of interest using a 99 confidence interval. if the width
the diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches amd a
Plot the sales data as a time series and do you think this series is stationary or nonstationary
A dean of a business school claims that the Graduate Management Admission Test (GMAT) scores of applicants to the school's MBA program have increased during the past 5 years.
an investigator hypothesizes that cholesterol levels in children might be effected by educating their parents on proper
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