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The exercise problem the following information to figure prevalence and incidence rate:
Population of the city of Atlantis on March 30th, 2003 = 183,000.
Number of new cases of tuberculosis occurring between january 1st and June 30th, 1003 = 26
Number of active TB cases according to the city register on June 30th, 2003 = 264.
Describe what do you mean by conditional probability. Give clinical example to support the explanation.
Last year, there were 30,000 students at a university; their GPA had a mean of 2.9 and an SD of 0.6. This year, in a simple random sample of 100 students taken from this university, the GPAs have a mean of 2.95 and an SD of 0.55. Has the mean GPA ..
If the population mean is estimated within two days, how many salespeople should be sampled?
Multiple choice questions based on regression - dependent variable Y and an independent variable X is provided.
A multiple regression equation for list price of homes in certain community in USA is=170,000 -850 X 1 + 28,000 X 2 , where X 1 signifies age in years and X 2 signifies number of rooms.
The world record time (in minutes) in the marathon is plotted versus the year in which the record was set for men and women separately. The plotting symbol o is used for men and x for women. The data include only records set between 1908 and 1988.
An important idea in data interpretation is choosing which graph to use under which circumstances. Describe the benefits of different graphs for different sets of data:
Not take SRS of 25 students who took test. What are the mean and standard deviation of sample mean score xbar of these 25 students?
Explain how you can determine n3 from knowing n1 and n2. Thus, the multinomial distribution of (n1, n2, n3) is actually two-dimensional.
If you have a statistical package that computes binomial probabilities, find the probability that at least five funds outperform the market in all 10 years.
We can compare two sample means to determine if the samples were obtained from normal populations with the same mean using the "t" distribution.
Construct the 95% confidence interval for the proportion of students with at least one injury.
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