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Serum cholesterol levels were taken from a population of 10,000 college students. The results were normally distributed. Males had a mean of 195 and a standard deviation of 10. Females had a mean of 185 and a standard deviation of 12.
Concern was expressed by the health educators that students with serum cholesterol levels above 200 might be at an increased risk of heart disease. If the campus was equally divided between males and females, how many students would be at increased risk?
A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek.
Factor the polynomial completely. Factor each completely given that the binomial following it is a factor of the polynomial.
Show the odds of any two individuals having the same birthday are slightly greater than 1:1 (1:.9732 actually).
Office Visits what is the age distribution of patients who make office visits to a doctor or nurse?
Find the probability that the age of a randomly selected CEO will be between 56-57 y/o. (round to 4th decimal) The probability a randomly selected CEO will be between 56-57 y/o is?
How would your colleagues probably react to such a statement of yours? Is their expected (positive or negative) reaction the local cultural habit in your company or is it a wider position common for people in your country?
What is the sample space for this process and evaluate the variance of the intelligence scores
Set up a hypothesis test to validate this claim. Using a significance level of .01 to test this hypothesis, what is your decision rule
Determine the correlatins between pairs of all interval variables (i,e., absences with PE, PE with math, math with writing) How much of the math grade can be explained by the PE grade?
To find the probability that exactly 25 of the computers will require repair, one would use what type of probability distribution?
Sample mean is $43000 for a sample of n = 100 construct a 90% confidence interval that her estimate is correct. Interpret the answer in the context of the problem.
Suppose an unrelated 77-year old man, 76 - year old woman, and 82- year old woman are selected from a community. What is the probability that all three of these individuals have Alzheimer's disease?
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