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The five year surival rate for Caucasians for all forms increased from 37% in 1960 to 58% now. Express this change in two ways (1) as an absolute difference in terms of percentage points and (2) as a relative difference in terms of percent.
The five year survial rate for Caucasians for all cancer increased by _________ percentage points (neraest tenth)
The five year survial rate increased by_________(nearest tenth).
Is this a proper probability density function? How do you know? Find the mean, variance, and standard deviation of x, showing your work.
City government has collected the following data on annual sales tax collections and new car registrations: Determine the least squares regression equation.
In his report to the mall management, can he say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely..
The point estimate for the difference between the proportions is:
Based on your experience using ANOVA and Nonparametric tests, what additional information would you recommend to the key decision maker solve the challenges given in a company that provides software solutions to wide range of clients?
In 1,000 samples, assuming that H 0 is true, how many times would you expect to commit Type I error if:
For the most recent year available, the mean annual cost to attend a private university in the United States was $20,182. Assume the distribution of annual costs follows the normal probability distribution and the standard deviation is $4,400.
A study sponsored by American Express Co. and the French government tourist office found that old American stereotypes about French unfriendliness weren't true.
Determine the point estimate in this study? Compute the standard error in this example?
Develop a probability distribution for the number of students in the sample who watch soap operas.
A survey is planned to determine the mean annual family medical expenses of employees of a large company. The management of the company wishes to be 95% confident that the sample mean is correct to within plus-or-minus $50 of the population mean.
Write a statistical laboratory report using the guidelines in the assigned article, "How to Write a Statistical Report."
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