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A random sample of 49 lunch customers was taken at a restaurant. The average amount of time the customers in the sample stayed in the restaurant was 33 minutes. From past experience, it is known that the population standard deviation equals 10 minutes.
a. Compute the standard error of the mean.b. What can be said about the sampling distribution for the average amount of time customers spent in the restaurant? Be sure to explain your answer.c. With a .95 probability, what statement can be made about the size of the margin of error?d. Construct a 95% confidence interval for the true average amount of time customers spent in the restaurant.e. With a .95 probability, how large of a sample would have to be taken to provide a margin of error of 2.5 minutes or less?
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Ten students were sampled at random from a student population. Each was asked how many courses he or she was planning on studying in the upcoming year. The following is a list of the reported data values: 1, 2, 2, 3, 4, 5, 5, 5, 5, 6 What is the vari..
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In your workplace? Elsewhere in the business sector? In your education (during your UOPX degree program)? In politics? Explain your response.
Clark Heter is an industrial engineer at Lyons Products. He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
Please show/discuss extensively how number theory is applied in cryptography.
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