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The housekeeping services department of Ruger Clinic, a multi-specialty practice in Toledo, Ohio had $100,000 in direct costs during 2011. These costs must be allocated to Ruger's three revenue-producing patient services departments using the direct method. Two cost drivers are under consideration: patient services revenue and hours of housekeeping services used. The patient services departments generated $5 million in total revenues during 2011, and to support these clinical activities, they used 5,000 hours of housekeeping services.
A sample of 45 students enrolled in the university indicates that X (bar) = $285.4 and s = $42.20. Using the 0.05 level of significance, is there evidence that the population mean is above $300?
Standard deviation of 100. The top 3% of students receive $500. What is the minimum score you would need to receive this award?
A sample of 49 pieces of cloth reveals a sample mean breaking strength of 69.1 pounds. State the null and alternative hypotheses.
Suppose you have a set of blood pressures with a mean of 80 diastolic and standard deviation of 5 points. assuming a normal distributions of blood pressures, what two values should 95% of all blood pressures lie? show work.
When estimating the mean of a population, how large must the sample be in order that the 95% error margin is 1/8 the standard deviation?
Which of the following assumptions is not made for the F-test for comparing three or more means?
A study of cardiovascular risk factors compared heavy smokers, light smokers, and nonsmokers. Both men and women were included in the study so that the two factors are smoking level and gender.
If sample mean is M=44. Is this sufficient to demonstrate significant effect? Again assume a Two-tailed test with a=0.05.
The Web-based company Henrietta Balloons has a goal of processing 96% of its orders on the same day they are received. If 95 out of the next 100 orders were processed on the same day, would this prove that they are exceeding their goal, using a 90%..
A manufacturer of small appliances purchases coffeepot handles from an outside vendor. If a handle is cracked, it is considered defective and can't be used
Find the probability that a sample of size 9 will yield a mean and find the probability that the sample proportion
below are five questions that might be found on questionnaires. comment on each as to whether it is a good question
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