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How would you define Incidence Rate? A doctor's office gives each patient a survey to complete. The results of the survey revealed that a person can suffer from allergic flare-ups up to 3 times per year with each flare-up lasting one week. Find the incidence rate for anyone in the population who suffers from allergies. Calculate infant mortality rate in Massachusetts for 2010, providing there were 10 infant deaths for every 1500 live births. In 2011 there were 14 infant deaths for every 1000 live births; in 2012 there were 12 infant deaths for every 1300 live births. Using the infant death information from problem 3, calculate the infant mortality rate over the 3 year period. In an independent study in the county of Worcester, 18 males die from liver cancer per 100, 000 males. With a standard error of 3.7, what is the relative standard error?
Generate a 95% confidence interval for the difference in mean numbers of cups of coffee consumed between men and women.
What is the p-value and compute a 95% CI for the difference in means between the two groups?
Find the point estimate for the population proportion, the margin of error for a 95% confidence and then construct to the 95% confidence interval for the population proportion
A geological study indicates that wells drilled in a certain area should strike water with probability 0.2. Find the probability that:
The annual income among male and female nurses differs significantly. There is a significant difference in the length of hospitalization among patients admitted from nursing homes, rehabilitation facilities and home
Can the company conclude that the pill is effective at promoting weight loss? Write the hypotheses and conduct the appropriate hypothesis test.
We have no knowledge about whether waiting times follow a normal distribution. Why is it nevertheless appropriate to use inference methods which rely on the assumption of normality? Construct a 97% confidence interval for the true mean emergency wa..
If you were to accept the null hypothesis, even though the null hypothesis was false, what type of error would you have commited?
The overall average for the samples is 17 ounces. The range is only 0.5 ounce. Determine the upper and lower control-chart limits for averages for the boxes of cereal.
Explain the difference between the null hypothesis and the alternate hypothesis. How is the null hypothesis chosen (why is it null)? What is the importance of rejecting the null hypothesis in relation of the sample to the population?
In a clinical study of an allergy drug, 114 of 203 subjects reported experiencing significant relief from their symptoms. What is the point estimate of the true proportion of people who reported relief in the population.
Suppose the horses in a large stable have a mean weight of 1464 lbs, and a standard deviation of 111. What is the probability that the mean weight of the sample horses would differ from the population mean by less than 11 lbs if 34 horses are samp..
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