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A jar contains 2 black marbles and 8 white marbles. If you randomly pick 2 marbles without replacement, what is the probability that you get one marble of each color?
Jon Molnar will graduate from Carolina Forest High School this year. He took the American College Test (ACT) for college admission and received a score of 30.
Consider the relationship between derived scores and the normal curve. In terms of the normal curve and how it relates to psychological testing and assessment.
What was the purpose of calculating a Cohen's d? When is a Cohen's d calculated? Interpret d=.90. What does it mean in this example?
Security B has an expected return of 12 percent, a standard deviation of returns of 10 percent, a correlation with the market of 0.7 and a beta coefficient of 1.0.
Finding an X score. All Bright University will consider an applicant for its MBA program who scores 95 percent or higher on the GMAT exam. The mean and standard deviation, respectively, for this test are 578 and 94. What is the lowest score (X) th..
A doctoral student is designing a research study. She is hoping that the results of the study are statistically significant. What type of p-value would she want to obtain? Select one of the following.
Marks on statistics midterm test are normally distributed with mean of 78 and a standard deviation of 6. Determine the probability that class of 50 has average midterm mark that is less than 75?
what is the sampling distribution model of the percent passing developmental courses for your campus in Fall 2009 and provide the percentages between which we would expect to see 68% of the sampling distribution, 95% of the sampling distribution
Where should the warranty limits be set so that only 10 percent of the HDTVs need repairs at the manufacturer's expense?
The probability that average amount of purchase per weekend from Sam's sample is greater than average amount of purchase per weekend from Katie's sample =
Suppose we select a sample of 40 tires and use a simulator to determine the tread life. What is the likelihood of finding that the sample mean is between 59,050 and 60,950?
According to a hospital administrator, historical records over the past 10 years have shown that 20 percent of major surgery patients are dissatisfied with after-surgery care in the hospital. A scientific poll based on 400 hospital patients has ju..
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