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Assume that a procedure yields a binomial distribution with a trial repeated n times. Use a binomial probabilities table to find the probability of x successes given the probability p of success on a given trial
n=7, x=4, p=60
P(4)=
q1. mimi was the 5th seed in 2012 umuc tennis open that took place in august. in this tournament she won 83 of her 100
What is the probability that the sample proportion of grocery stores selling Haagen-Dazs ice-cream, will be within 0.01 of the population proportion?
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each loation.
Which study has the higher probability of a Type II error, the 60-subject study or the 100 -subject study? Which study has higher power?
Other research examining the effects of preschool childcare has found that children who spent time in day care, especially high quality daycare, perform better on math and language tests than children who stay at home with their mothers
in a poll of 600 randomly selected subjects 240 answered yes when asked if they planned to vote in a state election.
Consider a random sample of 200 shafts, and let X denote the number among these that are nonconforming, what is the (approximate) probability that X is: At most 30.
Suppose the population standard deviation is a=25. (The a is actually the funny looking 0 with the line that goes from the top right up at an angle) Compute the standard error of the mean
the worker at a carnival game claims that he can communicate with a small magic rock and to prove it he tells you to
Pproportion who are sent to prison after pleading innocent and being found guilty? No, as the test value -1.96 is inside interval (-2.58, 2.58), No, as the test value -4.94 is outside interval (-1.96, 1.96).
Dr. Walker is an industrial psychologist. She is currently studying stress among executives of Internet companies. She has developed a questionnaire that she believes measures stress.
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