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A national survey is conducted to assess the association between hypertension and stroke in persons over 55 years of age. Development of stroke was monitored over a 5 year follow-up period. The data are summarized below and the numbers are in millions.
a) Compute the incidence of stroke in persons over 55 years of ageb) Compute the relative risk of stroke comparing hypertensive to non-hypertensive personsc) Compute the odds ratio of stroke comparing hypertensive to non-hypertensive persons
What different types of variables are used in quantitative studies? Describe each type of variable and how they differ.
You would like to take an advantage of the higher yield investment but have only $500 available. What is the maximum rate of return that you would pay to borrow the $200 need to take advantage of the high yield investment?
The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, or 2. The probabilities are the same for each of these (1/3).
Create a real-world situation or problem involving children who have adhd. Within state the independent and dependent variables you would study
Assume that a 2005 poll of 1000 American voters found that 76% of Republicans favored ending the tax on dividend income, as did 42% of Democrats and 54% of Independents.
With a mean of 1/μ1 minutes for major language request and a mean of 1/μ2 minutes for minor language request. what is the probability that in the next hour a total of n service requests will arrive?
You are working on an analysis of your company's current cost structure reviewing the various fixed and variable costs within your firm. Your objective is to maximize your firms profit.
When using past data, I have found that the proportion of items rejected by quality control personnel is about 3%. We normally make 5000 items per day. For a p chart, what are the upper and lower control limits?
NCAA Basketball Tournament. Each year, 64 college basketball teams compete in the NCAA tournament. Sandbox.com recently offered a prize of $10 million to anyone who could correctly pick the winner in each of the tournament games.
To determine her blood pressure, Carolyn divides her day into three parts; morning, afternoon, and evening. She then measures her blood pressure at 4 randomly selected times during each part of the day. What type of sampling is used?
If the names of these 100 people in the building are still unknown but a room is allowed to lodge one tenant at most , then are there how many ways of room occupation?
At α = 0.05, is the correctness of the prediction different for the two types of cola drinkers?
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