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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 researcher hypothesizes that parents with school-aged children are more likely to vote in favor of a referendum increasing public school construct a zero order school referendum attitude table by parenting status?
Suppose that Y has a continuous distribution with pdf f2, let Z=X+Y. Show that Z has a continuous distribution and find its pdf.
a particular intersection in delaware is equipped with a surveillance camera. the number of traffic tickets issued to
A real estate agent has 2 tours. The first tour through N1and has 10 homes for sale, whereas the second tour through N2and has 5 homes for sale.
a sociologist wanted to study if divorce rates within the first year of marriage were any different in illinois than
It is estimated that the competitor will submit a bid for the contract with probability 0.40. What is the probability of getting the deal?
Major textbook publisher has a contract with a printing company. Part of the contract stipulates that no more than 5 percent of the pages should have any type of printing error.
a. Is it possible for a variance to be negative? Explain. b. What is the smallest value a variance can be? Under what conditions does the variance equal this smallest value?
Explain the applications of statistics in your own field (Business Administration/Accounting) - Construct a stem and leaf display.
10 squirrels were found to have an average weight of 9.6 ounces with a sample standard deviation is 0.30. find the 99
Carry out a Z test using the five steps hypothesis testing with a two-tailed test at the .05 significance level, and make a drawing of the distributions involved.
For the difference amplifier shown in Fig. P2.62, let all the resistors be 10 kΩ± x%. Find an expression for theworst-case common-mode gain that results. Evaluate this for x = 0.1, 1, and 5. Also, evaluate the resulting CMRR in each case. Neglect ..
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