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A student's final exam grade depends on how close the student sits to the center of the classroom during lectures. If a student sits r feet from the center of the room, the grade is a Gaussian random variable with expected value 80 - r and standard deviation r. If r is a sample value of random variable R, and X is the exam grade, what is fX|R(x|r)?
The average stock price for companies making up the S&P 500 is $40, and the standard deviation is $10. Assume the stock prices are normally distributed. What is the probability a company will have a stock price less than $33.
i. suppose an influenza epidemic strikes a city. in 10 of families the mother has influenza in 10 of families the
which is a characteristic of the variance inflation factor vif?a. it is insignificant unless the corresponding
Using the Wilcoxon Signed-Ranks Test. Paired sample data and use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero.
Atlanta Company stock is expected to follow an exponential growth rate. The relationship between the current stock price P0
What is the value of the upper end of the confidence interval? (Note: Round to the nearest dollar. Be sure to enter only the number without commas, $ signs, or any other symbols.)
a quality control test has five equally likely outcomes - a b c d and e.a what is the probability of c occurring?b what
True or false and explain: because the sons average an inch taller than the fathers, if the father is 72 inches tall, it's 50-50 whether the son is taller than 73 inches. Find the regression line of son's height on father's height, and its RMS erro..
Compute a 90% confidence interval for the population mean μ of home run percentages for all professional baseball players.
In a simple random sample of 40 connectors from a very large production run, the mean time until failure was found to be 35.5 seconds. Construct and interpret the 99% confi- dence interval for µ 5 the mean time until failure for all of the conne..
The nature of the hypothesis being tested, and the appropriateness of the statistical procedures employed in that test. You may illustrate your points using the tests you conducted.
A researcher randomly assigns 12 participants to one of three weight-loss conditions (A-diet, B-exercise, C-medication). The researcher obtains the following data: What is the values of SStotal
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