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A study in Florida is examining whether health literacy classes and using simple medical instructions that include pictures and avoid big words and technical terms can keep Medicaid patients healthier (San Luis Obispo Tribune, October 16, 2002). Twentyseven community health centers are participating in the study. For 2 years, half of the centers will administer standard care. The other centers will have patients attend classes and will provide special health materials that are easy to understand. Explain why it is important for the researchers to assign the 27 centers to the two groups (standard care and classes with simple health literature) at random.
A test consists of 10 true/false questions. To pass the test a student must answer at least 6 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test?
The manager of a paint supply store wants to determine whether the mean amount of paint conatined in 1- gallon cans purchased from a nationally known manufacturer is actually 1 gallon.
part 1shown below are the sales revenue and advertising cost data for seven companies published by international
Describe and apply the concepts and logic of elementary statistics. Conduct statistical analysis in SPSS (Statistical Package for the Social Sciences). Compare and contrast different types of data and the statistics that can be used to analyze them.
Write down all the pairwise comparisons we can make-for example, bihai versus caribaea red. There are three possible pairwise comparisons.
a multiple regression line was calculated in which x1 was a students grade point average and x2 was a students age. the
The table given below shows joint probability distribution of X and Y . Determine the covariance between the X and Y ?
question the manager of a catering company is using the number of people in the party to predict the cost of the
Roper. Through their Roper Reports Worldwide, GfK Roper conducts a global consumer survey to help multinational companies understand different consumer.
Suppose the time necessary to process an application for a license plate for a newly purchased vehicle is normally distributed with mean of 6 minutes and standard deviation of 1.5 minutes.
Suppose you have a confidence interval based on a sample of size n. Using the same level of confidence, how large a sample is required to produce an interval.
Calculate s(k) for each natural number k from 1 through 15. Are the numbers SQRT(5), PI, and -6 in the domain of the function s? What is the domain of the function s?
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