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The subject of employee health and safety is a broad one. Chose only one element of employee health and safety and good deep into the subject. Some ideas are workplace monitoring, substance abuse and drug testing, employment contracts, workplace security, workplace safety, OSHA, and others.
The following table gives the coal usage and electricity generated by ten randomly selected power stations in South Africa in 1992:
Researchers want to compare these results with information on job history using a chi-square test. What do you suggest they do first before performing a chi-square test?
assume x is normally distributed with a mean of 12 and a variance of 16.a calculate p9ltxlt17b find x1 such that pxgtx1
What is the minimum sample size (of attempts) if the proportion is to be estimated within ±2% with 95% confidence? What is the associated total cost?
Define the null and alternate hypotheses for the statistical test to find out if there is evidence that average weight of Smoky Bear moving van is more than 12,000 lb.
At a certain university, 30% of the students who take basic statistics are firstyear students, 35% are sophomores, 20% are juniors, and 15% are seniors.- Given that a student got an A in basic statistics, what is the probability that she or he is a..
When are differences between average or actual results important and how can you or your department decide whether or not the observed differences over time are important?
mean micro of 250 screws and a standard deviation ? of 8.30.find the probability that production will go below 238
1. when performing a hypothesis test and the population standard deviation is known what is the p-value for a
suppose the mean systolic blood pressure in a group of individuals is 150 mmhg with a standard deviation of 15.
What are the main differences between descriptive and inferential statistics? Give examples of each. When would random sampling not be the best approach to sample selection? Give an example.
A major issue facing many states is whether to legalize casino gambling. Suppose the govenor of one state believes that more than 55% of the state's registered voters would favor some form of legal casino gambling.
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