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Problem: A fast food restaurant has been considering dropping the pickles from its burgers. There is some sentiment that the ubiquitous pickle adds to the cost of the sandwich, but most people remove them anyway. The CEO decides that if we can be reasonably certain more than two-thirds of customers remove the pickle, then the pickle should no longer be placed on the sandwich (except by request). The operation manager was enlisted to spy on a random sample of one thousand customers. He found that 70 percent removed the pickle.
If the management wants to use confidence interval concept, to decide what they should do:
In what percentage of confidence level below that we can NOT be sure that more than two-thirds of customers remove the pickle?
assume that the given procedure yields a binomial distribution with n trials and the probability of success for one
Find the IQR for the mean amount of time 64 batteries last.
Design an algorithm to simulate chi-square distribution with 2k freedom via general transformation method.
Suppose that 35% of the students at a university favor the semester system, 60% favor the quarter system, and 5% have no preference.
A large department store wants to test whether the variance of waiting time in two checkout counters is approximately equal.
In many state lotteries you can choose which numbers to play. Consider a common form in which you choose 5 numbers. Which of the following strategies can improve your chance of winning? If the method works, explain why. If not, explain why using a..
This problem relates to Basic Statistics and it is about calculate the mean, median and mode for the given data
a student has been assigned 12 textbooks 3 for math 5 for music 4 for biology. she decides to keep all her books on one
What percent of the SAT verbal scores are less than 675? If 1000 SAT verbal scores are randomly selected about how many would you expect to be greater than 575?
A traffic signal is said to "fail" if it does not provide a sufficiently long green signal for the accumulated cars to enter the intersection.
A newspaper reports have 58 percent of farmers are planning to plant genetically modified crops presesnt year. The article adds that the poll is based on a random sample.
Agency for New Americans Denise Walker collapsed at home after her first outing as a volunteer for the Agency for New Americans in Raleigh, North Carolina.
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