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A medical inspector wants to estimate the overall average monthly occupancy rates of the cancer wards in 80 different hospitals that are evenly located in the northwestern, southeastern, central, and southern suburbs on New York City. State the relevant population and the most appropriate sampling design. Be sure to discuss the reasons for your answers.
clarkson university surveyed alumni to learn more about what they think of clarkson. one part of the survey asked
A trucking firm suspects that the mean lifetime of a certain tire uses is less than 35,000miles. To check the claim the firm randomly selects and tests 54 of these tires and gets a mean life time of 34,570
a pharmaceutical company receives large shipments of aspirin tablets. the acceptance sampling plan is to randomly
Several questions will be asked but the main outcome measure of interest will be the percentage of customers who were completely satisfied and plan to return and the average amount spent.
Why do we need a new test method to compare the means of 3 or more populations? Why can't we just use a series of z-tests or t-tests to compare all of the possible pairs of population means to see if one (or more) is different?
the undergraduate grade point average gpa for students admitted to the top graduate business schools was 3.37. assume
Find the critical t alpha/2 assuming the population is normally distributed, the confidence level is 95%, n=101 and sigma is unknown.
At the 0.05 level of significance can it be concluded that the population mean height of treated plants is difference from 38 centimeters?
families usa a monthly magazine that discusses issues related to health and health costs surveyed 19 of its
What is the probability of a fatal accident over a lifetime? Explain your reasoning carefully. Hint: Assume independent events. Why might the assumption of independence be violated?
peak expiratory flow pef is a measure of a patientotildes ability to expel air from the lungs. patients with asthma or
Use x for the number of bats and y for the number of balls made per week. The number of work-hours avaiable for construction and finishing is fixed.
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