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1nbsp5 patients qualify to have a surgical procedure performed the doctor states that there is an 80 chance of a
a local political candidate conducts a telephone survey of 250 voters concerning their opinion of local issues
one hundred tractor-trailer trucks are weighed at a highway weigh station from a normal population the average weight
nine automobiles are sampled to measure gas mileage the results yield an average of 226 miles per gallon with a
in a population of 1250 executives the mean amount spent on lunch per day is 750 with a standard deviation of 500 what
a human resource director wishes to develop an interval estimate for test scores on an exam she wants the interval to
the new director of an employment agency wishes to determine the percentage of applicants that speak a second language
twenty-five desserts are sampled to measure calorie content the results yield an average of 225 calories per bite with
consider two independent random variables x and y x has a uniform distribution on the interval 0 3 the probability
a sociologist wants to know the average number of times families eat out per week data was collected from 50 families
the mean gas mileage for a hybrid car is 57 miles per gallon suppose that the gasoline mileage is approximately
for a normal distribution with a mean of 169 and a standard deviation of 30 what is the z value distance from the mean
for this set of numbers 40 40 45 43 48 45 40 40 40 40 40 40 40 48 43 40 43 40 40 45nbsp what is the mean standard
we want to compare two unknown population meansa compute the 95 confidence interval for the difference between the two
a faculty member wishes to know the proportion of fhsu students who have been to europe she surveys 134 fhsu students
hays medical center wants to estimate the percentage of adults who exercise at least 1 hour per week how large a sample
from the mail service with immediate delivery of the postal service in the united states 90 is received by the
scores for a common standardized college aptitude test are normally distributed with a mean of 485 and a standard
annual demand for a drug is normally distributed with a mean of 40000 units and a standard deviation of 10000 unitsa
a particular pain relieving medicine has a decay rate of 22 per hour a patient was given a dose of the medicine 7
the standard heart rate for patients at a local hospital is normally distributed with a mean of 76 and a standard
a random survey of 450 viewers of mtv finds 300 of them to be under the age of twenty-five develop a ninety percent
suppose that x is normally distributed with a mean of 20 and a standard deviation of 15 what is p-745 le x le
body mass is a simple index of weight for height that is commonly used to classify overweight and obesity in adults
the results of the october 3rd vote on the emergency stabilization act of 2008 are shown in the table belowregion yes