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Bipolar. Psychiatrists estimate that about 1 in 100 adults suffers from bipolar disorder. What's the probability that in a city of 10,000 there are more than 200 people with this condition? Be sure to verify that a Normal model can be used here.
Statistics and Probability, Statistics
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Question: Suppose the Gap is considering putting a factory outlet store on Main Street and they hire you to conduct some required research. You implement a survey and ask 225 students how much they believe they would spe ...
A factory makes parts for laptop computers, including screws. The screws are required to have the right length. The lengths of the screws obey a normal distribution with mean μ=4.25 millimeters and standard deviation σ=0 ...
Assume that n = 8, and p = 2/9 1) Find the probability of at least 2 successes and at least 2 failures. 1-56*(2/9)^3*(6/9)^5-70*(2/9)^4*(6/9)^4-56*(2/9)^5*(6/9)^3 wasn't the answer.
Across the nine cities, in multilevel, multivariate analysis, controlling for income inequality (GINI coefficient), percent living in poverty and percent Non-Hispanic Black population, the ZIP code level overall HIV diag ...
Consider the binomial distribution where n = 11 and p = 0.05. Find the mean and standard deviation of this binomial distribution. The customers at a local appliance store are polled as they leave the store. Each is asked ...
Let N ( m , v ) denote the normal random variable with mean m and variance v . (a) If X is a Standard Normal variable, what is the distribution of the random variable 4 X - 1? (b) If X ~ N (3,1) and Y ~ ...
A forest type consists of three species of trees: 25% are Douglas-fir 40% are Hemlock 35% are Western Red Cedar a) What is the probability that a tree selected at random will be a Douglas-fir? b) What is the probability ...
Suppose that A, B and C are events in a sample space S, such that: A and B are equally likely; C is four times as likely as B; B and C are independent; if either B or C occurs, then A cannot occur; at least one of A, B o ...
Suppose a random sample of n = 49 observations is selected from a population that has normal distribution with mean 106 and standard deviation 12. a) Give the mean and the standard deviation of the sample mean X. b) Find ...
The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.02 level that the drug stays in the system for more than 339 minutes. After performing a hypothesis test, sh ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As