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Suppose we want to design a new placebo-controlled trial to evaluate an experimental medication to increase lung capacity. The primary outcome is peak expiratory flow rate, a continuous variable measured in liters per minute. The primary outcome will be measured after 6 months of treatment. The mean peak expiratory flow rate in adults is 300 with a standard deviation of 50. How many subjects should be enrolled to ensure 80% power to detect a difference of 15 liters per minute with a two-sided test and a = 0.05?
The initial investment on an electronic assembly robot was 916,044. Determine the cummulative depreciation for the equipment after two years of use, if the allowed lifetime of the property is 5 years. Use MACRS GDS
Provide information on developing appropriate rules and routines in the home at a parent meeting. What elements should we keep in mind when designing a healthy routine for young children?
my question is a simple random sample of 100 observations was taken from a large population. The sample mean and the standard deviation were determined to be 80 and 12 respectively. The standard error of the mean is what?
A Zamboni used to clear an ice skating rink is operated for 15 minutes and emits 200 g/min of CO. The skating rink has a volume of 30,000 m3, and a ventilation rate of 350 m3/min. Assume that the CO concentration in outdoor air is negligible and that..
Describe a decision problem that you have faced recently (or with which you are currently struggling). Describe the decision context and your objectives. What were the specific decisions that you faced, and what were the relevant uncertainties? Desc..
Discuss the Book of Leviticus in terms of the Name, the Connection to the other Books, Purpose, and Outline of the Main Events of the Book.
Write a packet filtering rule that will block the hosts in 131.204.0.0/16, i.e., the internal network, with the exception of mail server 131.204.128.3, from delivering the mail to outside mail servers.
Does it make good strategic sense for Apple to be a competitor in the computer, personal media player, smartphone, and tablet computer industries? Are the value chain activities that Apple performs in computers, personal media players, tablet compute..
Mr. D'souza has bought four cars - Merc, Honda, Ford, Zen - as presents for his sons' birthdays, all of which are next week. Given the following information, what will each son get?
Neo-classical architecture and neo-classical painting both find inspiation from what period?
choose a contemporary painting sculpture or piece of art that captures your interest. this should be a piece created
What do you mean by "First Emancipation," and when and how was it achieved? Support the answer with specific examples.
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