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A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.





tutor2 : Hello Student, May I help you with your Math problems?
student : If there is no preliminary estimate of the population proportion for people who have a given disease and react positively to a new drug, how many medical files should you include in a random sample in order to be 95% sure that the point estimate is within a distance of 0.03 from the population proportion; that is, the (percent) error is 3%.
tutor2 : we received your problem in our email, our experts send the solution to you as soon as possible
student : ahh i need the answer right away!
tutor2 : sorry, our math experts is not available at this time, so we send you the solution as soon as possible


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