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Recently the percentage of orders filled correctly at Wendy's was approximately 92%. If a sample of three orders is taken, what are the mean and standard deviation of the binomial distribution for the number of orders filled correctly? Assume that you go to the drive through window at Wendy's and place an order. Two friends of yours independently place orders at the drive through window at the same Wendy's.
In example 5.4 on page 175, you and two friends decided to go to Wendy's. Now, suppose that instead you go to McDonalds, which last month filled approximately 94.5% of the orders correctly. What is the probability that:
a. all three orders will be filled correctly?
b. none of the three will be filled correctly?
c. at least two of the three will be filled correctly?
d. What are the mean and standard deviation of the binomial distribution used in (a) through (c)?
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A person must score in the upper 2% of the population on an IQ test to qualify for member ship in Mensa, the international high-IQ society. If IQ scores are normally distributes with a mean of 100 and a standard deviation of 15, what score must a ..
Given what you've learned in this module about the meaning of "statistics", choose one of the examples from Part I (A-F), and raise a relevant question of your own that could be answered by a statistician.
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If one item is chosen at random, determine these probabilities. It is a TV
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A physician wanted to estimate the mean length of time µ that a patient had to wait to see him after arriving at the office.
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