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For the past 109 years, a certain state suffered 29 direct hits from major (category 3 to 5) hurricanes. Assume that this was typical and the number of hits per year follows a Poisson distribution. Complete parts (a) through (d).
a. What is the probability that the state will not be hit by any major hurricanes in a single year?
b. What is the probability that the state will be hit by at least one major hurricane in a single year? Is this unusual?
c. What is the probability that the state will be hit by at least three major hurricanes in a single year, as happened several years ago? Does this indicate that the hurricane season several years ago in this state was unusual?
d. What is the probability that the state will be hit by at least two major hurricanes in a single year, as happened last year? Does this indicate that the hurricane season this year in this state was unusual?
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a) Assume the underlying distribution is normal. Find and interpret a 99% confidence interval for the true mean weight of Trek mountain bikes. b) Suppose Trek claims to have the lightest mountain bikes on the market, with a mean weight of 10 kg. ..
Process measurement. Based on your description of the process in Exercise 27.1, suggest specific variables that you might measure in order to
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Gino Petralli is an enterprising businessman. He is in the process of starting up a pizzeria. Specifically, he needs to know if 10 tables in his dining area is enough
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Has the Prime Minister's speech increased support for the new legislation? Test with a significance level of 1%.
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