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Compare his performance on the two tests in terms of percentile ranks. In which exam did he do better? Please show computations and discuss.
suppose 1657 of 2006 registered voters sampled said they planned to vote for the republican candidate for president.
What information is provided by the sign (= or -) of the Pearson correlation? What information is provided by numerical value of the Pearson correlation?
Specify the null and alternative hypotheses you would use to determine if the opinions of Internet users are evenly divided among the four categories.
carbohydrates in grams can be used to predict the amount of energy released by a sports drink in kilocalories. in a
Show the odds of any two individuals having the same birthday are slightly greater than 1:1 (1:.9732 actually).
Assume that the number of customers who arrive at a water ice stand follows the Poisson distribution with an average rate of 6.4 per 30 minutes. What is the probability that three or four customers will arrive during the next 30 minutes?
What does the coefficient of determination tell you about the variation in attendance and the variation in the number of exhibitors?
ABC Corporation of California publishes a variety of statistics, including the number of individuals who got a new job during the past 12 months and the mean length of time the individuals have been on the job.
What are the key terms in a verbal hypothesis that signify whether you are conducting a one-tailed or two-test? Give an example and explain your answer.
If two registered voters are selected at random, what is the probability exactly one voter is a democrat?
the mean and standard deviation of the lifetime of a battery in a portable computer are 3.5 and 1.0 hours
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