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A test for diabetes is a measurement of a person's blood sugar level following an overnight fast. A result in the range 70-110 mg/dl is considered normal. For a healthy person, blood sugar level is normally distributed with mean 90 mg/dl and standard deviation 20 mg/dl. For someone with diabetes, blood sugar level is normally distributed with mean 160 mg/dl and standard deviation 40 mg/dl.
i. What is the probability that a healthy person will have blood sugar level above 105 mg/dl?
ii. What is the probability that someone with diabetes will test "normal"?
If the sample size is 8, the sample mean is 22, and the sample standard deviation s is 6.3, what is the margin of error?
A poll on a proposition showed that we are 95% confident that the population proportion of voters supporting it is between 40% and 48%.
The cost per unit for ecah product, given each contract result, is shown in the following payoff table. Determine which product should be produced, using the following decision criteria.
During the 1990s, businesses were expected to show a lot of interest in Central and Eastern European countries. As new markets began to open.
Suppose that a random sample of 15 adult U.S. males has a mean height of 70 inches with a standard deviation of 2.9 inches.
an investment adviser for g. prowe rice has many clients owning shares of mutual funds. these mutual funds are
Start with an arbitrary utility function u(x1, x2) that is differentiable. Let v (u) is a monotonic transformation of u.
Six industrial workers were chosen for a study of the effects of rest periods on production. Output was measured for one week before the new rest periods.
Determine the expected number of acceptances for the next 7 applicants and the standard deviation.
In a certain instant lottery game, the chance of a win is stated as 16?%. Express the indicated degree of likelihood as a probability value.
A company has just manufactured 1694 CDs and 376 are defective. If 9 of these CDs are randomly selected for testing, what is the probablity that the entire batch will be accepted?
At a = 0.05, can it be concluded that there is a difference in the rates of both cities?
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