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A test for marijuana was tried on 210 subjects who did not use marijuana. The test result was wrong 52 times.
A. Based on the availiable results find the probailbity of a wrong test result for a person who does not use it.
B. Is it "unlikely" for the test to be wrong for those not using marijuana?
Consider an event to be unlikely if its less than or equal to 0.05
in a statistical test the probability of making type i and type ii error were found to be 0.0234 and 0.6 respectively.
Assume a very large normally distributed population of scores on a test with mean 77 and standard deviation 7.
Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0.
ten juniors and five seniors have applied for two open student council positions. school adminitrators have decided to
How could the Central Limit Theorem apply in making a business decision? Try to provide an example from your current or future career.
Find the minimum sample size required for estimating the overall proportion of students who passed Exam P in 2009 to within 4% with 95% confidence if it is known that this proportion is between 30% and 40%.
A statistical analysis of 1,000 long-distance calls made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls is normally distributed with μ = 240 seconds and σ = 40 seconds.
As part of a study,investigators wanted to assess the accuracy of self reported smoking status. Participants are asked whether they currently smoke or not. In addition, laboratory tests are performed on hair samples to determine presence or absence o..
What is the shape mean and standard deviation of the resulting distribution of the sample mean? What is the probability that the mean of the sample of 42 is more than 52 hours?
for a population with micro 40 and s 7 find the -score for each of the following x values. note you probably will need
an offspring of a grey cat is grey with probability 0.6 and white with probability 0.4. an offspring of a white cat is
Build or generate at least five more Pythagorean Triples using one of the many formulas available online for doing this. After building your triples, verify each of them in the Pythagorean Theorem equation
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