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We ran a randomization test on the schistosomiasis data, and to calculate the p-value, we counted the number of randomizations that resulted in an outcome that was equal to, and at least as large as our observed difference between treatments. Given what you know about this method, do you expect the number of randomizations resulting in a difference greater than or equal to our observed value to be identical to the number of randomizations resulting in a difference less than or equal to our observed value? Explain your answer in a few sentences. If you decide that they would not be identical, make sure you state whether you expect them to be close or whether there could be a huge difference between them.
Explain how the independence assumption of a two-sample t-test is violated in a randomization model, such as the one we used for the schistosomiasis data.
question a manufacturer must decide whether to extend credit to a retailer who would like to open an account with the
Tally the data into a frequency distribution using $100 as a class interval and $0 as the starting point.
You recently received a traffic ticket for a serious moving violation. If you have an accident or receive another moving violation within the next 3 years.
Each inspector makes his or her inspection at a different time. What is the probability that at least one inspector will find a defective widget?
One sample has a mean of M=4 and a second sample has a mean of M=8. The two samples are combined into a single set of scores. a. What is the mean for the combined set if both of the original samples have n=7 scores? The mean will be equal to X = (5..
in analysis of variance which of the following is true if the f statistic is zero?a.all of the k sample means are
He offers you 3 choices for paying you back, 10000$ today or 12800$ in exactly 2 years or 14800$ in exactly 4 years.
What is the head circumference such that only 2.5% of adult males have a smaller head circumference?
Assume that a single event occurring in the service period will cause the system to crash. What is the probability that the system will crash?
Use descriptive statistics to summarize the SBC annual data. Discuss findings.
Sampling. A sample is chosen randomly from a population that can be described by a Normal model. a) What's the sampling distribution model for the sample mean? Describe shape, center, and spread. b) If we choose a larger sample, what's the effect on ..
When the machine is either out of control or down, a repair person must be called. What is the probability that a repair person must be called right now?
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