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A report from the U.S. Department of Justice (www.ojp.usdoj.gov/bjs/) gave the following percent changes in federal prison populations in 20 northeastern and midwestern states during 2005:
a) Graph these data.
b) Calculate appropriate summary statistics.
c) Write a few sentences about these data. (Remember: shape, center, spread, unusual features.)
a sample of 60 students from a large university is taken. the average age in the sample was 22 years with a standard
a survey in 2005 showed that 71 of the people polled felt that incurably ill patients should have the right to recieve
You have made an investment that pays you $2,000 at the end of the first year, and then decreases by 9% each year for 4 more years (5years total). What is the FUTURE worth of this investment? (interest rate= 9%).
The width of the confidence interval expands more when the confidence level increases. In addition, the sample size and the variability also influence the width of the confidence interval.
Conduct necessary analyses using so you can answer the questions - Submit your responses to the exercise questions as a Word document.
To develop a compensation plan designed to eliminate pay inequities, a sample of benchmark jobs are evaluated and assigned points, x, based on factors such a\ responsibility, skill, effort, and working conditions.
A student heard that the average household watches 26.4 hours of t.v. per week, with a stand.dev. of 2.3 hours. He decided to run his own experiment and found that the average for the 58 people he surveyed was 27 hours. a) state H0 and H1 b) calculat..
Other things remaining the same, which of the following will result in an increase in the p-value?- Increase in the sample size.
Tthe population standard deviation is not equal to 8 at the 0.05 level of significance. Calculate the value of the test statistic.
q. a teacher gave a 25 question multiple choice test. after scoring the tests she computed a mean and standard
lifetime of a motherboard is modeled by a gamma distribution with parameters r80 and gamma 4 years-1. compute the
Linear Optimization.
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