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Overbooking of passengers on intercontincontinental flights is como practice among airlines. Aircraft which are capable of carrying 340 passengers are booked to carry 365 passengers. If on average 10% passengers who have booked fail to turn up for their flights, what is the aveage probability that at least one passenger who has a booking will end up without a seat on particular flight? Hint: apply the normal approximation to the binomial distibution.
Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect? What percent of the garages take between 29 hours and 34 hours to erect?
the machining center at a production facility has three lathes of differing ages and thus precision. the oldest machine
1. you have obtained a sub-sample of 1744 individuals from the current population survey cps and are interested in the
calculate the estimate for the standard error of difference between two independent means for s12 13 s22 20 n1 22
By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.22 seconds.
The sample mean X will be used to estimate. Determine the probability that the estimate will be off by less than .2 oz. Assume that the SD of the fills is .8 oz.
a landscaper wishes to use several different types of plants. the categories include color red yellow blue and green
Found that 47% enjoy playing sports. would confidence in the results increase if the sample size were 3600 instead of 1100. why or why not?
What is the probability that the sample will have between 50% and 60% of the identifications correct? What is the probability that the sample percentage of correct identifications is greater than 65%?
• A student of the author surveyed her friends and found that among 20 males, 4 smoke and among 30 female friends, 6 smoke. Give two reasons why these results should not be used for a hypothesis test of the claim that the proportions of male sm..
more genetics. in problem 33 we learned that for some diseases such as sickle cell anemia an individual will get the
you plan to develop a new software system that you believe will surpass the success of google and facebook combined. in
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