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The data is based on 214 children with acute otitis media who participated in a randomized clinical trail each child had OME at the beginning of the study in either one or both ears and was randomly assigned to receive a 14 day course of one of two antibiotics, either cefaclor or amoxicillin. The data here concern the 203 children whose middle ear status was determined during a 14 day follow up visit.
Health and Nutrition Examination Survey, suppose that weights of men now are normally distributed with mean of m =172 pounds and standard deviation of s = 29 pounds.
Describe each of the following methods of statistical inference in detail (Please try to use layman's terms).
Why do you think it is significant to describe both the measure of central tendency and the measure of dispersion when talking about a data set?
If the server has 40 customers in one shift, what is the probability that her total tips are less than $250? (Assume that these 40 customers represent a simple random sample).
Understand autocorrelation and multicollinearlity in reference to the following questions. What type of regression is it common in? When is it likely to occur? What is its negative impact? How do we see if it exists? If found, how is it eliminated..
Absolutely lost on how to determine what is being asked in below problem. Need to calculate the covariance and correlation between X and Y
The managers of a brokerage firm are interested in finding out if the number of clients a broker brings into the firm affects the sales generated by the broker.
Imagine there are exactly m opportunities to cross safely by the time the nth shock occurs. What is the probability that the mth opportunity is a close call (that it occurs immediately before the nth shock).
In a recent study of incomes in Allegheny county in Pennsylvania it was found that distribution of family incomes is skew to the right. what can we say about the relationship between mean and median?
Compare population means or proportions to determine the relationship between variables.
Critically discuss the characteristics of integer programming problems. Provide specific instances in which you would use an integer programming model rather than an LP model. Provide real-world examples.
Researcher is interested in testing whether there are differences in mean between population one and population two.
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