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Suppose a basketball player is an excellent free throw shooter and makes 93% of his free throws. Assume that free throw shots are independent of one another. Suppose this player gets to shoot three free throws. Find the probability that he makes at least one of the three consecutive free throws.
A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 47.2 , with a standard deviation of 10.2.
The engineers hoped to base their decision on the reactions of 50 drivers, but time and budget constraints may force them to cut back to 20. How would this affect the power of the test? Explain.
Suppose that you are the director of table game operations at a large casino, known especially for its poker room. You are interested in determining the average number of hands the casino should expect per hour during peak hours in the poker room.
Calculate a 95% confidence interval for the mean endowment of all the private colleges in the United States assuming a normal distribution for the endowments.
A bank official reported the results of a regression analysis designed to predict the bank's charges (y), measured in dollars per month, for services rendered to local companies.
Define correlation. Then give an example of a misleading correlation and an example of a meaningful correlation. With this describe the relationship between correlation and causation.
From the course text and research I am able to create a frequency band with a single number (ie. 10, 20, 30, etc.). However, I am having difficulty creating the band with a number range (ie. $0-$999,999 or $1,000,000-$5,000,000).
A product is made up of two subsystems in parallel. Subsystem one consists of ten elements in series each with a failure rate of 1/100. The second subsystem consists of 5 elements in series each with a failure rate of 1/200. What is the overall re..
Computing probability values using normal distribution - Find the proportion of the observations will fall in the interval from 40 to 60?
Test the null hypothesis that the telephone survey technique has a probability of selecting a household with no children that is equal to the value obtained by the census.
Discuss three measures of central tendency for the dependent variable. Is this distribution skewed? If so, in what direction? Explain your answer. Why would you NOT attempt to determine the central tendency of the independent variables?
Do these results suggest that the different therapies have different effects on mental health? (Use the .05 level.) a. Use the five steps of hypothesis testing.
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