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Macintosh users make up about 5% of all computer users. A computer training school that wants to attract Macintosh users mails an advertising flyer to 25,000 computer users. If the mailing list can be considered a random sample of the population, what is the chance that at least 1245 Macintosh users will receive the flyer?
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
Identify and justify which type of sampling (random, stratified, systematic, cluster, convenience) is used in the following examples.
A contractor developed a multiplicative time series model to predict the number of contracts in future quarters, using quarterly data on number of contracts during the 3-year period from 1996 to 1998.
The researcher found that Lincoln's educational score did not correlate with the expected variables.
Determine the probability that the project will be completed in 80 days or less.
In 1992, FAA conducted 86,991 pre-employment drug tests on job applicants who were to be engaged in safety and security-related jobs, and found that 1,143 were positive.
In the solution to this problem, what is n? p? q? Does it appear that both np and nq are larger than 5? Why is this an important consideration?
FBI Report Do greater universities tend to have more property crime, would you speek that the correlation is low, moderate or high
According to Chebyshev's Theorem, how many students scored between 23 and 95?
What is the smallest level of significance at which you could reject the null in favor of the alternative hypothesis?
For the data giben below, prepare a R-chart. Note that the sample size is three.
The p-value for a test statistic is .085, what is the minimum level of significance required to reject the null hypothesis?
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