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According to the U.S. Census Bureau, the average US wage in 2017 was $44,570 and also $28,850. Which is the mean and which is the median? Why?
If the order of objects is not of? importance, how many ways can twelve objects be selected two at a? time? Why is this result different from the result when or
Explain how you could actually "randomly pick a number between 1 and 10." Your method should be such that all 10 numbers have the same chance of being selected.
A seven member committee of students is formed to study environmental issues. What is the likely hood that anyone of the seven is chosen as the spokes person?
What kind of variance does the mean square within-groups (MSwg) reflect?- The sum of squares between-groups (SSbg).
Describe the shape of a waiting time {geometric) distribution for a given proba, bility p of a success on each trial. Will the first bar in a waiting time distribution always be the highest? Why or why not?
one of your companys products a flux capacitor is known to have an exponential failure time distribution with a mean of
Construct and interpret a 95% confidence interval to compare the proportions of users and nonusers who expect businesses to have Web sites.
Another hand. You pick three cards at random from a deck. Find the probability of each event described below.
A random sample of 15 AAA batteries produced by this manufacturer lasted a mean of 9.8 hours with a standard deviation of 2.5hours. Find a 90% confidence interval for the population standard deviation of the lifetimes of AAA batteries produced by ..
The researcher will then compare the scores for the two treatments. If there is a difference between the two groups of scores. Briefly explain how the difference simply may be sampling error.
Does the use of cell phones lead to a higher incidence of brain cancer? People with brain cancer were matched with people who did not have brain cancer on age, gender, and living environment. Each participant in the study was asked to answer question..
Determine the probability that the technician will have enough processors to replace 3 defective processors at the repair sites.
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