49. Tips. A waiter believes the distribution of his tips
Chapter 18, Problem 49(choose chapter or problem)
49. Tips. A waiter believes the distribution of his tips has amodel that is slightly skewed to the right, with a mean of$9.60 and a standard deviation of $5.40.a) Explain why you cannot determine the probabilitythat a given party will tip him at least $20.b) Can you estimate the probability that the next 4 partieswill tip an average of at least $15? Explain.c) Is it likely that his 10 parties today will tip an averageof at least $15? Explain.
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