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Because of tough economic times, the Indiana legislature is debating a bill that could have significant negative implications for public school funding. There are three possibilities for this bill: (1) it could be passed in essentially its current version; (2) it could be passed but with amendments that make it less harsh on public school funding; or (3) it could be defeated. The probabilities of these three events are estimated to be 0.4, 0.25, and 0.35, respectively.
The estimated effect on percentage changes in salaries next year at Indiana University are estimated as follows. If the bill is passed in its current version, the mean and standard deviation of salary percentage change will be 0% and 1%. If the bill is passed with amendments, the mean and standard deviation will be 1.5% and 3.5%.
Finally, if the bill is defeated, the mean and standard deviation will be 3.5% and 6%. Find the mean and standard deviation of the percentage change in salaries next year at Indiana University.
Use Bayes' rule to find conditional probability which Julianne is carrier, given that she and Jason have one child who doesn't have CF.
A recent report from the American Medical Association claims that for the first time in ten years, the average salary of psychiatrists was greater than $190,000 with a standard deviation of $27,000. What is the null hypothesis for his claim?
Determine the absolute differences for the values computed in column 4. Recall that in an absolute difference we ignore the sign of the difference. The absolute differences are shown in column 5.
What is the computed z-value for testing the null hypothesis that the proportion of successes in Population 1 exceeds the proportion of successes in Population
People who answered incorrectly, 26 are men. The question was given to an equal number of men and women all with the same IQ. Find the probability that among 120 wrong answers, at least 82 made by men.
You are tracking the sales of three tires. Using the binomial distribution formula, what is the probability that at least one will need a repair?
What is the probability that exactly 5 cars will arrive in a given hour and what is the probability that at least 3 cars arrive in a given hour ?
Is there a significant difference in mean fetal heart rates by position? Run the test at a 5% level of significance.
Around the end of the 15th century, which two houses battled each other for control of the English throne in the Wars of the Roses?
In a study of the effects of marijuana use during pregnancy, measurements on babies of mothers who used marijuana during pregnancy were compared to measurements on babies of mothers who did not
A student randomly guesses on all 25 questions of a true-false test. Use the normal approximation to the binomial to approximate Pr[ ], that is, that the student gets 10 or fewer questions correct.
The Federal Government is stepping up efforts to reduce average response times of fire departments to fire calls. The distribution of mean response times to fire calls follows a normal distribution with a mean of 12.8 minutes and a standard deviat..
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