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Suppose that 3% of all adults suffer from diabetes and that 28% of all adults are obese. Suppose also that 2% of all adults both are obese and suffer from diabetes.
(a) Find the probability that a randomly chosen adult is obese, given that he or she suffers from diabetes. Round your answer to 2 decimal places.
(b) Find the probability that a randomly chosen adult who is obese also suffers from diabetes. Round your answer to 2 decimal places.
A consumer magazine randomly selected 100 new hybrid car dealers from across the country, and created a list of retail prices. They want to know if the price differs from $25,000.
For the 20 test scores shown, find the percentile rank for a score of 86.
What type of error occurs if you reject H0 when, in fact, it is true? When each data value in one sample is matched with a corresponding data value in another sample, the samples are known as?
If the random variable X has the mean μ and the standard deviation σ, show that the random variable Z whose values are related to those of X by means of the equation
mollys candle shop has several retail stores in the coastal areas of north and south carolina. many of mollys customers
What is statistical power? How does a researcher decide whether to use a one-tailed or two-tailed test? What are the advantages and disadvantages of using a two-tailed test?
an airline knows that 5 of the people making reservations on a certain flight will not show up. consequently their
Can we compute the mean length of stay of workers at the company differs from the mean length of stay at that dangerous industry.
Find out sample standard deviation (s) of scores Gordon Golfer made on his last four rounds (determine to the nearest one tenth, or .1).
The random variables, X and Y, have a probability density function given by: By transformation of variables, find the probability density function of Z=X+Y.
Explain how a matched pairs experiment should be conducted to compare texting and typing speeds. Be sure to explain the role of randomization, and why it is important in this experiment and how should randomization be used in this experiment
We consider the loss system M/G/2/2. Suppose that the service times have independent exponential distributions with parameter Θ, where Θ is a random variable such that
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