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during an annual heating season the average gas bill for customers in a new england community heating their homes with
in given exercise the maker of soft drink a claims its product to be superior to soft drink b given the results
a food expert claims that there is no difference between the taste of two leading soft drinks in a taste test involving
if a computer statistical package were to simulate 2000 random observations from a normal distribution with mu 150 and
if a computer statistical package were to simulate 1000 random observations from a normal distribution with mu 200 and
according to a recent survey 35 of the adult citizens of mayville have a charge account at marcys department storemr
of the 10 million persons of voting age in maine 72 voted in the 2004 presidential electionfor a randomly selected
a public relations agency tells its client that 80 of the residents in a 50-mile radius believe the company is an
given the results of given exercise evaluate the claim made by the public relations agencyexercise a public relations
a researcher is studying a particular process and has identified the following times in minutes between consecutive
based on data covering two consecutive school years the national safety council found that fourth to sixth graders
the number of defects in rolls of aluminum sheet average 35 defects per 100 feet the company president is accompanying
the mileage death rate for motorcycle riders has been estimated to be about 39 deaths per 100 million miles of
the 20-ounce package of mozzarella cheese distributed by a food company actually has a weight that is normally
state police academy graduates from a large graduating class have scored an average of 810 on a proficiency test and
the trainer for a professional football team has found that on the average his team experiences 23 sprained ankles per
about 30 of new single-family homes completed in the united states during 2004 were heated with electricity for a
of all individual tax returns filed in the united states during the 1999 tax filing season 137 were prepared by hampr
the electronic industries association reports that about 54 of us households have a camcorderfor a randomly selected
1 what is the relationship between the poisson distribution and the exponential distribution2 every day drivers arrive
the main switchboard at the home shopping network receives calls from customers if the poisson distribution were
a random variable is poisson distributed with lambda 050 arrivals per minute for the corresponding exponential
a computer statistical package has simulated 1000 random observations from a normal distribution with mu 50 and sigma
the american iron and steel institute reports the fatality rate for workers in this industry as 0007 fatalities per
during 2004 us general aviation pilots had 120 fatal crashes per 100000 flying hours harriet arnold is president of