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A starting lineup in basketball consists of two guards, two forwards, and a center. A certain college team has on its roster three centers, four guards, four forwards, and one individual (X) who can play either guard or forward. How many different starting lineups can be created?
A software company wants to determine whether there is a relationship between their three sales offices and the sales of their software products. The actual sales results are
Surface area of a cube. The formula A=6V^2/3 gives the surface area of a cube in terms of its volume V. What is the volume of a cube with surface area 12 square feet?
A Pew research poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming.
In baseball, the term "batting average" is employed as one way to measure a player's offensive performance. If we were to consider the idea of batting average in statistical sense
Make a point estimate of the population mean difference in endurance after taking the herbs. Make a 95% confidence interval estimate of the population mean difference.
For each data set, compute and save g(m hat). Then do the following: Plot the histogram of B values of g(m hat)and sqrt(n)*[g(m hat)- g(m )].
If an applicant passes the "aptitude test for managers," what is the probability that the applicant will succeed in a management position?
At one Las Vegas casino, if you net $5 that a 12 will come up as the total points on two dice, and you win, you will get back $50. If any total other than 12 comes up, you get back $0.
How do hypothesis-testing procedures differ for the population mean when the population standard deviation is known or unknown? What is the relationship between two-sided hypothesis tests for means and confidence intervals?
A professor is targeting a score of 80 on an exam. His forty-nine students averaged 78 on an exam with s = 7. Are the scores significantly less than 80 at a significance level of 0.05? Show your work and state the conclusion.
Setup Null and Alternate hypotheses to test if average amount of soda in each can is less than 32 oz. Test the hypothesis using a = 0.05. What can you conclude from all this?
In 1,000 samples, assuming that H 0 is true, how many times would you expect to commit Type I error if:
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