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In the United States, criminal defendants are presumed innocent until they are proven guilty beyond a reasonable doubt, because it is thought better to let nine guilty people go free than to send one innocent person to prison. Assume that 90 percent of all defendants are guilty, 90 percent of the guilty defendants are convicted, and 90 percent of the innocent defendants are set free.
a. Of those people convicted, what percent are innocent?
b. Of those people set free, what percent are guilty?
Use a 0.05 significance level to test the claim that unfiltered king-size cigarettes have a mean tar content greater than that of filtered 100 mm cigarettes.
multiple choice question based on multiple regression.below you are given a partial minitab output based on a sample of
A random sample of 85 group leaders, supervisors, and similar personnel at General Motors revealed that, on the average, they spent 6.5 years on the job before being promoted.
in a one-factor anova with n17 n26 n35 n45 and n57 the sample standard deviations were s1 12 s2 24 s3 16 s4 46 s5
test the given claim using the traditional method of hypothesis testing. assume that the sample has been randomly
public health officials claim that people living in low income neighborhoods have different physical activity levels
The U.S. Commission of Crime wishes to estimate the fraction of crimes related to firearms in an area with one of the highest crime rates in the country.
the following table gives the probabilities gives the number of police officers who will call in sick daily for a large
This week you will develop a fictitious problem and data set that utilizes specific statistics to analyze the data. The goal of this project is to allow you to demonstrate your cumulative knowledge and to operationalize your learning in a scholarl..
The amount of time ships spend at the Philadelphia dockyard follows an exponential distribution and the average time spent in the dockyard is 3.1 days.
We expect the results of samples of size 320 to be more predictable (less variable) than the results of samples of size 20. That is "long-run regularity" showing itself.
Assuming that the process is operating correctly according to specifications, what is the probability that a sample will indicate that an adjustment is needed?
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