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1. According to a front-page article in The Wall Street Journal, 30% of all students in American universities miss classes due to drinking.8 If 10 students are randomly chosen, what is the probability that at most 3 of them miss classes due to drinking?
2. According to an article in USA Today, 60% of 7- to 12-year-olds who use the Internet do their schoolwork on line.9 If 8 kids within this age group who use the Internet are randomly chosen, what is the probability that 2 of them do their schoolwork on line? What is the probability that no more than 5 of them do their schoolwork on line?
the distribution of heights of adult men in the u.s. is approximately normal with mean 69 inches and standard deviation
Arizona Plumbing, which makes, among other products, a full line of bathtubs must decide which of its factories should supply which of its warehouses.
1. Why is it important to think carefully about decision situations that involve multiple conflicting objectives? 2. Explain the general decision-analysis approach to dealing with multiple objectives.
Identify the point estimate of the average number of available hotel rooms in this lesson from each sample. Construct and Interpret a 95% confidence level for the true mean number of available hotel rooms, based on the point estimate of each sampl..
Determine the annual break-even volume for the Retread Tire Company operation.
From a previous study, the standard deviation of the ages is known to be 3 years.
Assume from past information that it is known that the standard deviation of the population is 9 hours. What is the correct conclusion for this hypothesis test?
A CPA has selected and audited a sample of 100 accounts with a total book value of $1,000 and an audited value of $1,200. Using the mean-per-unit estimation technique, the estimated total audited value of the population is:
A bonding company want to insure a construction projects completion. If the project is cancelled due to the contractor's lack of performance
A company manufacturers batteries in batches of 18 and there is a 3% rate of defects. Find the standard deviation for the number of defects per batch.
1.simulate 100 random normal variables with mean 1.5 and standard deviation 2. create a histogram which shows the data
A random sample of 25 households finds that an average of 2.3 people reside in each house (the standard deviation is 0.35). With a 95% confidence level, what is your estimation of the population average?
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