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1. What is necessary for a process to be considered a Bernoulli process?
2. When we are sampling without replacement, under what conditions can we assume that the constant assumption has been satisfactorily met?
Determine the typical seasonal patterns for sales using the ratio-to-moving-average method. Project the sales for 2004, and then seasonally adjust each quarter.
Gallup Polls When Gallup and other polling organizations conduct polls, they typically contact subjects by telephone. In recent years, many subjects refuse to cooperate with the poll.
Assume that an old used car fails to start 10% of the time. The other 90% of the time it drives for a time period which is uniformly distributed in the interval 20 to 30 minutes. In this interval all subintervals of time of equal width between 20 ..
an average of 5 calls coming per minute. What is the probability that up to a minute will elapse until 2 calls have come in to the switchboard?
Create a visual of the data you collected from the questionnaires - You need to take the data you collected and transfer it into an appropriate visual for your reader
For testing the null hypothesis at the 4% level of significance that mu GE 100 vs the alternative that mu
What is the correlation?- Write the equation of the line of regression predicting verbal scores from math scores.- In general, what would a positive residual mean in this context?
test the hypothesis that the average cost for a japanese make is more than for a u.s. make where the u.s. data is
In a sample of 1200 police officers, the mean annual salary was $33,000 and the standard deviation was $3200. A random sample of size 70 is drawn from this population. What is the probability that the mean annual salary is between $32,000 and $32,..
The expected value of the number of simple random samples of size 20 that must be drawn until (and including) the first sample that contains at least one voter who is neither a Democrat nor a Republican is?
Does the process appear to have been in control? Determine control limits for future production.
Using the findings from the survey, estimate the number of vehicles of each of the following hybrid types that are expected to be purchased over the next three years. There are 114,825,000 American households (U.S. Census, 2010 estimate) do not us..
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