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What is the distribution of the case described here? "Mr. HR hits a homerun in his turn at a baseball game with 5% of chance. He wants to know the distribution of chances he needs to have before hitting the third homerun."
assume x is a standard normal random variable and y n09so variance is 9. what is the 97.5 percentile of px and
1. a study sponsored by american express co. and the french government tourist office found that old american
r. Patton is a professor of English. Recently she counted the number of misspelled words in a group of student essays. She noted the distribution of misspelled words per essay followed the normal distribution with a standard deviation of 2.44 word..
2. The staff at a local psychiatric facility wants to determine whether implementing a No Smoking rule significantly decreases the length of stay of inpatients.
The standard deviation is $10,000, can the president conclude that there is difference? At a =0.10, is he correct? The hypotheses and the claim.
Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data
In a normal distribution with mean 59 and standard deviation 22, how large a sample must be taken so that there will be at least a 90 percent chance that its mean is greater than 53?
1. of 1906 people who came into a blood bank to give blood 300 people had high blood pressure. estimate the probability
according to the census bureau 68 of americans owned their own homes in 2003. a local real estate office wants to see
At the 5% level of significance, can we infer that the population mean weight of athletic men is lower than the population mean weight of non-athletic men by more than 2 pounds?
What is the necessary sample size
Use factoring, the quadratic formula, or identities to solve the following equations:
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