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Problem: Consider a dataset of two paired variables, X and Y that have the following properties:
a. Provide values for X and Y that have the four properties listed above. There are many possible solutions, so be sure to show that each of these properties is true.
b. Suppose this data met all assumptions of paired t-test. Why would you still be unable to test if there is a significant mean difference?
What are the degrees of freedom of the t test statistic when testing whether the number of customers who make purchases affects weekly sales and what is the value of the standard error of the estimate?
What is the probability that a randomly chosen package is improperly sealed?
Construct a 98% prediction interval for the selling price of a 4l- year old house having 4500 square feet, 13 rooms, and an attached garage.
in a class with 18 boys and 12 girls boys have probability 13 of knowing the answer and girls have probability 12 of
question according to a survey published by compsych corp. 54 of all workers read email while they are talking on the
decide first if binomial or hypergeometric distributions is appropriate. then write which one is most appropriate.
Results Show the results and details of the tted regression models in appropriate tables and possibly any relevant graphs. Provide an interpretation of the results and a comparison of the three techniques for modeling (gee, glmm,transition).
in a certain country 9 of the population have a certain disease. a diagnostic blood test has been developed for the
the three forms of the research or alternative hypothesis area. high low and neutralb. increased decreased or changedc.
there are 7 seniors and 3 juniors in the statistics club and a team of 5 will be randomly selected to attend the joint
What is the probability that this teammate has two or fewer years of experience? more than five years of experience? What is the probability that, considering both of Dave's two teammates.
the wayne manufacturing company purchases a certain part from suppliers a b and c. suppler a supplies 65 of the parts b
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