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1) If a < b, then -a > -b Why?
2) What role of operations that applies when you are solving an equation does not apply when you are solving an inequality?
3) What is the inherent meaning and justification of cross-multiplication as it applies to solving an inequality?
4) What is different about multiplying an equation by a negative number and multiplying an inequality by a negative number?
Show the decision rule graphically. Use the .05 significance level.
Based on the equation of the least-squares line, we use software to predict the average number of home runs hit per game per team for the year 2001. We obtain the following.
The law of large numbers tells us what happens in the long run. Like many games of chance, the numbers racket has outcomes so variable-one three digit number wins $600 and all others win nothing-that gamblers never reach "the long run".
A small town has a population of 20,000 people. Among these, 1,000 regularly visit a popular local bar. A sample of 100 people who visit the bar is surveyed for their annual expenditures in the bar.
Describe the use of sensitivity analysis and postoptimality analysis in analyzing the results. Describe the characteristics of a Bernoulli process. How is a Bernoulli process associated with the binomial distribution?
A polling company obtains an alphabetical list of names of voters in a precinct. They select every 20th person from the list until a sample of 100 is obtained.
Billie wishes to test the hypothesis that overweight individuals tend to eat faster than normal-weight individuals. To test this hypothesis, she has two assistants sit in a McDonald's restaurant and identify individuals who order the Big Mac speci..
Now we would like to evaluate regression equation for X using Y as independent variable.
What type of graph would you use to represent the data and why? Focus on finding relevant, personally meaningful material to work with for these students.
At some vacation destinations, "all-inclusive" resorts allow you to pay a flat rate and then eat and drink as much as you want. There has been concern about whether these deals might lead to excessive consumption of alcohol by young adults on spri..
A person makes random guesses for 10 true-false questions on a test. Find the probability that the student answers at least one question correctly.
At the .05 significance level, is there a difference in the mean number of miles traveled per month between Cincinnati and Pittsburgh employees? Use the five-step hypothesis-testing procedure.
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