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1. Roller Coaster The Rock 'n' Roller Coaster at Disney-MGM Studios in Orlando has two seats in each of 12 rows. Riders are assigned to seats in the order that they arrive. If you ride this roller coaster once, what is the probability of getting the coveted first row? How many times must you ride in order to have at least a 95% chance of getting a first row seat at least once?
2. Whodunnit? The Atlanta plant of the Medassist Pharmaceutical Company manufac- tures 400 heart pacemakers, of which 3 are defective. The Baltimore plant of the same company manufactures 800 pacemakers, of which 2 are defective. If one of the 1200 pacemakers is randomly selected and is found to be defective, what is the probability that it was manufactured in Atlanta?
Determinant methods Cramers rule to solve the simultaneous equations and Shade the region satisfying the inequalities.
the thickness of eight pads designed for use in aircraft engine mounts are measured. the measurements are 41.83 42.68
Describe the target population, sampling frame, sampling unit, and observation unit. Discuss any possible sources of selection bias or inaccuracy of responses.
the population proportion is .30. what is the probability that a sample proportion will be within plusmn.04 of the
when analysis of data reveals a difference between levels of a factor what is this called?a. factor effectb. level
you need to test the alternative hypothesis that an average is greater than 70. if the population average is 70 and
The length of the thorax (where the wings and legs attach) in a population of male fruit flies is approximately Normal with a mean 0.800 (mm) and standard deviation 0.078 mm. What proportion of flies have thorax length 0.9 mm or longer?
What is the expected number of baby girls in the sample of 40 births? What is the standard deviation of this binomial distribution?
A real estate broker hoped to develop an equation that could be used to predict the sales price of homes in a certain suburb. It seemed to him that the most important variable
Determine and interpret a 95% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day.
Using a previous exercise about Hallux abducto valgus (HAV) (deformation of the big toe that often requires surgery). Doctors used x-rays to measure the angle (in degrees) of deformity in 38 consecutive patients under the age 21 who came to a medi..
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. Answer the following questions. a) What is the probability of completing the e..
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