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A student is taking a journalism class and a Chicano studies class. She received an 83 on her first journalism exam (Class Mean = 80; SD = 3) and 43 on her Chicano studies exam (Class Mean = 46; SD = 1.5). Compute z-scores for both exams. Which class did she receive a better grade in? [Must show your work to get credit; Hint: See page 75 in your textbook]
a student took two national aptitude tests. the national average and standard deviation were 675 and 150 respectively
Are Violent Crimes Distributed Uniformly? Based on data from the Federal Bureau of Investigation, violent crimes in a recent year occurred with the distribution given in the accompanying table.
assume we know that the probability that a college student owns an iphone is 0.70. four students are selected at random
1. a study of commuting times reports the travel times to work of a random sample of 17 employed adults in new york
If there are 75 students in the class, what is the probability the professor needs more than 6 hours to mark all of the midterms?
the average age for licensed drivers in a county is micro 42.6 ? 12 and the distribution is approximately normal. a
You are working on an analysis of your company's current cost structure reviewing the various fixed and variable costs within your firm.
The reinvestment rate for these funds is 3 percent. Anderson uses an 13 percent required return on this project. what is the NPV?
1. Explain Type I and Type II errors. Use an example if needed. 2. Explain a one-tailed and two-tailed test. Use an example if needed.
What is the probablitity that, for a sample of 40 college games to be played next week the mean number of holding penalties will be 2.1 penalties per game or less.
suppose there is a correlation of 0.87 between the length of time a person is in prison and the amount of aggression
Suppose n unrelated people are gathered together. What is the smallest n for which chances are >50% that there will be two or more people born in the same calendar month?
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